# Changelog All notable changes to this project will be documented in this file. See [Changelog Update](book/src/development/infrastructure/changelog_update.md) if you want to update this document. ## Unreleased / Beta / In Rust Nightly [1e8fdf49...master](https://github.com/rust-lang/rust-clippy/compare/1e8fdf49...master) ## Rust 1.73 Current stable, released 2023-10-05 [View all 103 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2023-07-02T12%3A24%3A40Z..2023-08-11T11%3A09%3A56Z+base%3Amaster) ### New Lints * [`impossible_comparisons`] [#10843](https://github.com/rust-lang/rust-clippy/pull/10843) * [`redundant_comparisons`] [#10843](https://github.com/rust-lang/rust-clippy/pull/10843) * [`ignored_unit_patterns`] [#11242](https://github.com/rust-lang/rust-clippy/pull/11242) * [`readonly_write_lock`] [#11210](https://github.com/rust-lang/rust-clippy/pull/11210) * [`filter_map_bool_then`] [#11115](https://github.com/rust-lang/rust-clippy/pull/11115) * [`needless_return_with_question_mark`] [#11031](https://github.com/rust-lang/rust-clippy/pull/11031) * [`redundant_guards`] [#10955](https://github.com/rust-lang/rust-clippy/pull/10955) * [`redundant_locals`] [#10885](https://github.com/rust-lang/rust-clippy/pull/10885) * [`absolute_paths`] [#11003](https://github.com/rust-lang/rust-clippy/pull/11003) * [`error_impl_error`] [#11107](https://github.com/rust-lang/rust-clippy/pull/11107) * [`iter_skip_zero`] [#11046](https://github.com/rust-lang/rust-clippy/pull/11046) * [`string_lit_chars_any`] [#11052](https://github.com/rust-lang/rust-clippy/pull/11052) * [`four_forward_slashes`] [#11140](https://github.com/rust-lang/rust-clippy/pull/11140) * [`format_collect`] [#11116](https://github.com/rust-lang/rust-clippy/pull/11116) * [`needless_pass_by_ref_mut`] [#10900](https://github.com/rust-lang/rust-clippy/pull/10900) * [`manual_is_infinite`] [#11049](https://github.com/rust-lang/rust-clippy/pull/11049) * [`manual_is_finite`] [#11049](https://github.com/rust-lang/rust-clippy/pull/11049) * [`incorrect_partial_ord_impl_on_ord_type`] [#10788](https://github.com/rust-lang/rust-clippy/pull/10788) * [`read_line_without_trim`] [#10970](https://github.com/rust-lang/rust-clippy/pull/10970) * [`type_id_on_box`] [#10987](https://github.com/rust-lang/rust-clippy/pull/10987) ### Moves and Deprecations * Renamed `unwrap_or_else_default` to [`unwrap_or_default`] [#10120](https://github.com/rust-lang/rust-clippy/pull/10120) * Moved [`tuple_array_conversions`] to `pedantic` (Now allow-by-default) [#11146](https://github.com/rust-lang/rust-clippy/pull/11146) * Moved [`arc_with_non_send_sync`] to `suspicious` (Now warn-by-default) [#11104](https://github.com/rust-lang/rust-clippy/pull/11104) * Moved [`needless_raw_string_hashes`] to `pedantic` (Now allow-by-default) [#11415](https://github.com/rust-lang/rust-clippy/pull/11415) ### Enhancements * [`unwrap_used`]: No longer lints on the never-type or never-like enums [#11252](https://github.com/rust-lang/rust-clippy/pull/11252) * [`expect_used`]: No longer lints on the never-type or never-like enums [#11252](https://github.com/rust-lang/rust-clippy/pull/11252) ### False Positive Fixes * [`panic_in_result_fn`]: No longer triggers on `todo!`, `unimplemented!`, `unreachable!` [#11123](https://github.com/rust-lang/rust-clippy/pull/11123) ### Suggestion Fixes/Improvements * [`semicolon_if_nothing_returned`]: The suggestion is now machine-applicable with rustfix [#11083](https://github.com/rust-lang/rust-clippy/pull/11083) ### ICE Fixes * [`filter_map_bool_then`]: No longer crashes on late-bound regions [#11318](https://github.com/rust-lang/rust-clippy/pull/11318) * [`unwrap_or_default`]: No longer crashes on alias types for local items [#11258](https://github.com/rust-lang/rust-clippy/pull/11258) * [`unnecessary_literal_unwrap`]: No longer crashes on `None.unwrap_or_default()` [#11106](https://github.com/rust-lang/rust-clippy/pull/11106) * Fixed MIR-related ICE [#11130](https://github.com/rust-lang/rust-clippy/pull/11130) * [`missing_fields_in_debug`]: No longer crashes on non-ADT self types [#11069](https://github.com/rust-lang/rust-clippy/pull/11069) ## Rust 1.72 Released 2023-08-24 [View all 131 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2023-05-22T14%3A53%3A59Z..2023-07-01T22%3A57%3A20Z+base%3Amaster) ### New Lints * [`manual_try_fold`] [#11012](https://github.com/rust-lang/rust-clippy/pull/11012) * [`tuple_array_conversions`] [#11020](https://github.com/rust-lang/rust-clippy/pull/11020) * [`redundant_at_rest_pattern`] [#11013](https://github.com/rust-lang/rust-clippy/pull/11013) * [`needless_pub_self`] [#10967](https://github.com/rust-lang/rust-clippy/pull/10967) * [`pub_with_shorthand`] [#10967](https://github.com/rust-lang/rust-clippy/pull/10967) * [`pub_without_shorthand`] [#10967](https://github.com/rust-lang/rust-clippy/pull/10967) * [`manual_range_patterns`] [#10968](https://github.com/rust-lang/rust-clippy/pull/10968) * [`needless_raw_string_hashes`] [#10884](https://github.com/rust-lang/rust-clippy/pull/10884) * [`needless_raw_strings`] [#10884](https://github.com/rust-lang/rust-clippy/pull/10884) * [`incorrect_clone_impl_on_copy_type`] [#10925](https://github.com/rust-lang/rust-clippy/pull/10925) * [`drain_collect`] [#10835](https://github.com/rust-lang/rust-clippy/pull/10835) * [`single_range_in_vec_init`] [#10934](https://github.com/rust-lang/rust-clippy/pull/10934) * [`unnecessary_literal_unwrap`] [#10358](https://github.com/rust-lang/rust-clippy/pull/10358) * [`large_stack_frames`] [#10827](https://github.com/rust-lang/rust-clippy/pull/10827) * [`min_ident_chars`] [#10916](https://github.com/rust-lang/rust-clippy/pull/10916) * [`needless_if`] [#10921](https://github.com/rust-lang/rust-clippy/pull/10921) * [`excessive_nesting`] [#10672](https://github.com/rust-lang/rust-clippy/pull/10672) * [`arc_with_non_send_sync`] [#10898](https://github.com/rust-lang/rust-clippy/pull/10898) * [`redundant_type_annotations`] [#10570](https://github.com/rust-lang/rust-clippy/pull/10570) * [`host_endian_bytes`] [#10826](https://github.com/rust-lang/rust-clippy/pull/10826) * [`little_endian_bytes`] [#10826](https://github.com/rust-lang/rust-clippy/pull/10826) * [`big_endian_bytes`] [#10826](https://github.com/rust-lang/rust-clippy/pull/10826) * [`ptr_cast_constness`] [#10779](https://github.com/rust-lang/rust-clippy/pull/10779) * [`needless_else`] [#10810](https://github.com/rust-lang/rust-clippy/pull/10810) ### Moves and Deprecations * Moved [`redundant_clone`] to `nursery` (Now allow-by-default) [#10873](https://github.com/rust-lang/rust-clippy/pull/10873) ### Enhancements * [`undocumented_unsafe_blocks`]: Added [`accept-comment-above-attributes`] configuration [#10986](https://github.com/rust-lang/rust-clippy/pull/10986) * [`undocumented_unsafe_blocks`]: Added [`accept-comment-above-statement`] configuration. [#10886](https://github.com/rust-lang/rust-clippy/pull/10886) * [`missing_panics_doc`]: No longer lints on `todo!()` [#10976](https://github.com/rust-lang/rust-clippy/pull/10976) * [`module_inception`]: Added `allow-private-module-inception` configuration. [#10917](https://github.com/rust-lang/rust-clippy/pull/10917) * Errors and warnings generated while parsing `clippy.toml` now point to the location in the TOML file the error/warning occurred in. [#10607](https://github.com/rust-lang/rust-clippy/pull/10607) ### False Positive Fixes * [`excessive_precision`]: No longer lints overflowing literals [#10952](https://github.com/rust-lang/rust-clippy/pull/10952) ### Suggestion Fixes/Improvements * [`option_map_unwrap_or`]: The suggestion now considers the set [`msrv`] config value [#11030](https://github.com/rust-lang/rust-clippy/pull/11030) ### Documentation Improvements * [Clippy's lint list] now stores filter parameters in the URL, to allow easy sharing [#10834](https://github.com/rust-lang/rust-clippy/pull/10834) ## Rust 1.71 Released 2023-07-13 Note: Clippy will use a shorter changelog format from now on, if you want a detailed list of all changes, please check out the list of merged pull requests. [View all 78 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2023-04-11T20%3A05%3A26Z..2023-05-20T13%3A48%3A17Z+base%3Amaster) ### New Lints * [`non_minimal_cfg`] [#10763](https://github.com/rust-lang/rust-clippy/pull/10763) * [`manual_next_back`] [#10769](https://github.com/rust-lang/rust-clippy/pull/10769) * [`ref_patterns`] [#10736](https://github.com/rust-lang/rust-clippy/pull/10736) * [`default_constructed_unit_structs`] [#10716](https://github.com/rust-lang/rust-clippy/pull/10716) * [`manual_while_let_some`] [#10647](https://github.com/rust-lang/rust-clippy/pull/10647) * [`needless_bool_assign`] [#10432](https://github.com/rust-lang/rust-clippy/pull/10432) * [`items_after_test_module`] [#10578](https://github.com/rust-lang/rust-clippy/pull/10578) ### Moves and Deprecations * Rename `integer_arithmetic` to `arithmetic_side_effects` [#10674](https://github.com/rust-lang/rust-clippy/pull/10674) * Moved [`redundant_clone`] to `nursery` (Now allow-by-default) [#10873](https://github.com/rust-lang/rust-clippy/pull/10873) ### Enhancements * [`invalid_regex`]: Now supports the new syntax introduced after regex v1.8.0 [#10682](https://github.com/rust-lang/rust-clippy/pull/10682) * [`semicolon_outside_block`]: Added [`semicolon-outside-block-ignore-multiline`] as a new config value. [#10656](https://github.com/rust-lang/rust-clippy/pull/10656) * [`semicolon_inside_block`]: Added [`semicolon-inside-block-ignore-singleline`] as a new config value. [#10656](https://github.com/rust-lang/rust-clippy/pull/10656) * [`unnecessary_box_returns`]: Added [`unnecessary-box-size`] as a new config value to set the maximum size of `T` in `Box` to be linted. [#10651](https://github.com/rust-lang/rust-clippy/pull/10651) ### Documentation Improvements * `cargo clippy --explain LINT` now shows possible configuration options for the explained lint [#10751](https://github.com/rust-lang/rust-clippy/pull/10751) * New config values mentioned in this changelog will now be linked. [#10889](https://github.com/rust-lang/rust-clippy/pull/10889) * Several sections of [Clippy's book] have been reworked [#10652](https://github.com/rust-lang/rust-clippy/pull/10652) [#10622](https://github.com/rust-lang/rust-clippy/pull/10622) [Clippy's book]: https://doc.rust-lang.org/clippy/ ## Rust 1.70 Released 2023-06-01 [View all 91 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2023-02-26T01%3A05%3A43Z..2023-04-11T13%3A27%3A30Z+base%3Amaster) ### New Lints * [`large_futures`] [#10414](https://github.com/rust-lang/rust-clippy/pull/10414) * [`missing_assert_message`] [#10362](https://github.com/rust-lang/rust-clippy/pull/10362) * [`clear_with_drain`] [#10528](https://github.com/rust-lang/rust-clippy/pull/10528) * [`redundant_async_block`] [#10448](https://github.com/rust-lang/rust-clippy/pull/10448) * [`collection_is_never_read`] [#10415](https://github.com/rust-lang/rust-clippy/pull/10415) * [`let_with_type_underscore`] [#10467](https://github.com/rust-lang/rust-clippy/pull/10467) * [`tests_outside_test_module`] [#10543](https://github.com/rust-lang/rust-clippy/pull/10543) * [`allow_attributes`] [#10481](https://github.com/rust-lang/rust-clippy/pull/10481) * [`suspicious_doc_comments`] [#10497](https://github.com/rust-lang/rust-clippy/pull/10497) * [`unnecessary_box_returns`] [#9102](https://github.com/rust-lang/rust-clippy/pull/9102) * [`manual_main_separator_str`] [#10483](https://github.com/rust-lang/rust-clippy/pull/10483) * [`unnecessary_struct_initialization`] [#10489](https://github.com/rust-lang/rust-clippy/pull/10489) * [`manual_slice_size_calculation`] [#10601](https://github.com/rust-lang/rust-clippy/pull/10601) * [`lines_filter_map_ok`] [#10534](https://github.com/rust-lang/rust-clippy/pull/10534) ### Moves and Deprecations * Moved [`let_underscore_untyped`] to `restriction` [#10442](https://github.com/rust-lang/rust-clippy/pull/10442) ### Enhancements * [`extra_unused_type_parameters`]: No longer lints on public items if `avoid-breaking-exported-api` is set [#10536](https://github.com/rust-lang/rust-clippy/pull/10536) * [`len_without_is_empty`]: Now also detects `async` functions [#10359](https://github.com/rust-lang/rust-clippy/pull/10359) * [`arithmetic_side_effects`]: Now correctly handles divisions and modulo expressions if the right-hand-side is unknown [#10585](https://github.com/rust-lang/rust-clippy/pull/10585) * [`nonminimal_bool`]: No longer ignores `#[allow]` attributes [#10588](https://github.com/rust-lang/rust-clippy/pull/10588) * [`uninit_vec`], [`uninit_assumed_init`]: Now uses a better heuristic [#10520](https://github.com/rust-lang/rust-clippy/pull/10520) * [`ifs_same_cond`]: Now also detects immutable method calls. [#10350](https://github.com/rust-lang/rust-clippy/pull/10350) * [`arithmetic_side_effects`]: No longer lints on right or left shifts with constant integers, as the compiler warns about them [#10309](https://github.com/rust-lang/rust-clippy/pull/10309) * [`items_after_statements`]: `#[allow(items_after_statements)]` now works on items [#10542](https://github.com/rust-lang/rust-clippy/pull/10542) * [`significant_drop_tightening`]: Was optimized [#10533](https://github.com/rust-lang/rust-clippy/pull/10533) ### False Positive Fixes * [`single_component_path_imports`]: No longer lints if the import is used relative to `self` [#10566](https://github.com/rust-lang/rust-clippy/pull/10566) * [`derivable_impls`]: No longer suggests deriving `Default` on generics with implicit arguments [#10399](https://github.com/rust-lang/rust-clippy/pull/10399) * [`let_unit_value`]: No longer lints if the expression contains an `await` [#10439](https://github.com/rust-lang/rust-clippy/pull/10439) * [`double_must_use`]: Now ignores `async` functions [#10589](https://github.com/rust-lang/rust-clippy/pull/10589) * [`manual_clamp`]: No longer lints in constant context [#10479](https://github.com/rust-lang/rust-clippy/pull/10479) * [`almost_swapped`]: Now ignores external macros [#10502](https://github.com/rust-lang/rust-clippy/pull/10502) * [`nonminimal_bool`]: Now ignores macros [#10527](https://github.com/rust-lang/rust-clippy/pull/10527) * [`needless_return`]: No longer lints match statements with incompatible branches [#10593](https://github.com/rust-lang/rust-clippy/pull/10593) * [`use_self`]: Do not suggest using `Self` in const generic parameters [#10375](https://github.com/rust-lang/rust-clippy/pull/10375) * [`mem_replace_option_with_none`]: No longer lints on field expressions [#10594](https://github.com/rust-lang/rust-clippy/pull/10594) * [`items_after_statements`]: No longer lints on items from macros [#10542](https://github.com/rust-lang/rust-clippy/pull/10542) * [`print_literal`], [`write_literal`]: No longer lint strings coming from the `file!()` macro [#10573](https://github.com/rust-lang/rust-clippy/pull/10573) * [`uninit_vec`], [`uninit_assumed_init`]: Now check the types inside arrays and tuples [#10553](https://github.com/rust-lang/rust-clippy/pull/10553) * [`almost_swapped`]: No longer lints if a variable is assigned to itself [#10499](https://github.com/rust-lang/rust-clippy/pull/10499) * [`missing_docs_in_private_items`]: No longer lints on public items [#10324](https://github.com/rust-lang/rust-clippy/pull/10324) ### Suggestion Fixes/Improvements * [`extra_unused_type_parameters`]: The suggestion is now machine applicable [#10536](https://github.com/rust-lang/rust-clippy/pull/10536) * [`match_single_binding`]: Now adds a semicolon after the suggestion [#10470](https://github.com/rust-lang/rust-clippy/pull/10470) * [`missing_const_for_fn`]: Now includes a note if the change could break compatibility [#10618](https://github.com/rust-lang/rust-clippy/pull/10618) * [`cast_possible_truncation`]: Corrected suggestion for float and wildcard casts [#10496](https://github.com/rust-lang/rust-clippy/pull/10496) * [`transmutes_expressible_as_ptr_casts`]: The suggestion now includes parentheses when they are required [#10454](https://github.com/rust-lang/rust-clippy/pull/10454) ### ICE Fixes * [`needless_borrow`]: No longer panics on ambiguous projections [#10403](https://github.com/rust-lang/rust-clippy/pull/10403) * [`multiple_unsafe_ops_per_block`]: Fix ICE when calling a function-like object in an unsafe block [#10405](https://github.com/rust-lang/rust-clippy/pull/10405) ### Others * `clippy-driver` now searches parent directories for `clippy.toml` files [#10592](https://github.com/rust-lang/rust-clippy/pull/10592) * Fixed a deserialization error for the `array-size-threshold` config value [#10423](https://github.com/rust-lang/rust-clippy/pull/10423) ## Rust 1.69 Released 2023-04-20 [View all 72 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2023-01-13T06%3A12%3A46Z..2023-02-25T23%3A48%3A10Z+base%3Amaster) ### New Lints * [`no_mangle_with_rust_abi`] [#10369](https://github.com/rust-lang/rust-clippy/pull/10369) * [`significant_drop_tightening`] [#10163](https://github.com/rust-lang/rust-clippy/pull/10163) * [`suspicious_command_arg_space`] [#10317](https://github.com/rust-lang/rust-clippy/pull/10317) * [`let_underscore_untyped`] [#10356](https://github.com/rust-lang/rust-clippy/pull/10356) * [`question_mark_used`] [#10342](https://github.com/rust-lang/rust-clippy/pull/10342) * [`extra_unused_type_parameters`] [#10028](https://github.com/rust-lang/rust-clippy/pull/10028) * [`impl_trait_in_params`] [10197](https://github.com/rust-lang/rust-clippy/pull/10197) * [`transmute_int_to_non_zero`] [#10360](https://github.com/rust-lang/rust-clippy/pull/10360) * [`multiple_unsafe_ops_per_block`] [#10206](https://github.com/rust-lang/rust-clippy/pull/10206) ### Moves and Deprecations * Moved [`uninlined_format_args`] to `pedantic` (Now allow-by-default) [#10265](https://github.com/rust-lang/rust-clippy/pull/10265) * Moved [`unchecked_duration_subtraction`] to `pedantic` (Now allow-by-default) [#10194](https://github.com/rust-lang/rust-clippy/pull/10194) ### Enhancements * [`arithmetic_side_effects`]: No longer lints if safe constant values are used. [#10310](https://github.com/rust-lang/rust-clippy/pull/10310) * [`needless_lifetimes`]: Now works in local macros [#10257](https://github.com/rust-lang/rust-clippy/pull/10257) * [`unused_io_amount`]: Now detects usages of `is_ok` and `is_err` [#10225](https://github.com/rust-lang/rust-clippy/pull/10225) * [`missing_docs_in_private_items`]: Added new configuration `missing-docs-in-crate-items` to lint on items visible within the current crate. For example, `pub(crate)` items. [#10303](https://github.com/rust-lang/rust-clippy/pull/10303) * [`almost_swapped`]: Now detects almost swaps using `let` statements [#10177](https://github.com/rust-lang/rust-clippy/pull/10177) * [`wildcard_enum_match_arm`]: Now lints missing private variants, for local enums [#10250](https://github.com/rust-lang/rust-clippy/pull/10250) ### False Positive Fixes * [`explicit_auto_deref`]: Now considers projections when determining if auto deref is applicable [#10386](https://github.com/rust-lang/rust-clippy/pull/10386) * [`manual_let_else`]: Now considers side effects of branches before linting [#10336](https://github.com/rust-lang/rust-clippy/pull/10336) * [`uninlined_format_args`]: No longer lints for arguments with generic parameters [#10343](https://github.com/rust-lang/rust-clippy/pull/10343) * [`needless_lifetimes`]: No longer lints signatures in macros if the lifetime is a metavariable [#10380](https://github.com/rust-lang/rust-clippy/pull/10380) * [`len_without_is_empty`]: No longer lints if `len` as a non-default signature [#10255](https://github.com/rust-lang/rust-clippy/pull/10255) * [`unusual_byte_groupings`]: Relaxed the required restrictions for specific sizes to reduce false positives [#10353](https://github.com/rust-lang/rust-clippy/pull/10353) * [`manual_let_else`]: No longer lints `if-else` blocks if they can divergent [#10332](https://github.com/rust-lang/rust-clippy/pull/10332) * [`expect_used`], [`unwrap_used`], [`dbg_macro`], [`print_stdout`], [`print_stderr`]: No longer lint in test functions if `allow-expect-in-tests` is set [#10391](https://github.com/rust-lang/rust-clippy/pull/10391) * [`unnecessary_safety_comment`]: No longer lints code inside macros [#10106](https://github.com/rust-lang/rust-clippy/pull/10106) * [`never_loop`]: No longer lints statements following break statements for outer blocks. [#10311](https://github.com/rust-lang/rust-clippy/pull/10311) ### Suggestion Fixes/Improvements * [`box_default`]: The suggestion now includes the type for trait objects when needed [#10382](https://github.com/rust-lang/rust-clippy/pull/10382) * [`cast_possible_truncation`]: Now suggests using `try_from` or allowing the lint [#10038](https://github.com/rust-lang/rust-clippy/pull/10038) * [`invalid_regex`]: Regex errors for non-literals or regular strings containing escape sequences will now show the complete error [#10231](https://github.com/rust-lang/rust-clippy/pull/10231) * [`transmutes_expressible_as_ptr_casts`]: The suggestion now works if the base type is borrowed [#10193](https://github.com/rust-lang/rust-clippy/pull/10193) * [`needless_return`]: Now removes all semicolons on the same line [#10187](https://github.com/rust-lang/rust-clippy/pull/10187) * [`suspicious_to_owned`]: The suggestion now shows all options clearly [#10295](https://github.com/rust-lang/rust-clippy/pull/10295) * [`bytes_nth`]: Now suggests the correct replacement based on the context [#10361](https://github.com/rust-lang/rust-clippy/pull/10361) * [`bool_assert_comparison`]: The suggestion is now machine applicable [#10218](https://github.com/rust-lang/rust-clippy/pull/10218) * [`cast_possible_truncation`]: Corrected the lint name in the help message [#10330](https://github.com/rust-lang/rust-clippy/pull/10330) * [`needless_return`]: The suggestion now works on if sequences [#10345](https://github.com/rust-lang/rust-clippy/pull/10345) * [`needless_lifetimes`]: The suggestion is now machine applicable [#10222](https://github.com/rust-lang/rust-clippy/pull/10222) * [`map_entry`]: The suggestion no longer expands macros [#10346](https://github.com/rust-lang/rust-clippy/pull/10346) ### ICE Fixes * [`needless_pass_by_value`]: Fixed an ICE caused by how late bounds were handled [#10328](https://github.com/rust-lang/rust-clippy/pull/10328) * [`needless_borrow`]: No longer panics on ambiguous projections [#10403](https://github.com/rust-lang/rust-clippy/pull/10403) ### Documentation Improvements * All configurations are now documented in the Clippy Book [#10199](https://github.com/rust-lang/rust-clippy/pull/10199) ## Rust 1.68 Released 2023-03-09 [View all 76 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2022-12-01T20%3A40%3A04Z..2023-01-12T18%3A58%3A59Z+base%3Amaster) ### New Lints * [`permissions_set_readonly_false`] [#10063](https://github.com/rust-lang/rust-clippy/pull/10063) * [`almost_complete_range`] [#10043](https://github.com/rust-lang/rust-clippy/pull/10043) * [`size_of_ref`] [#10098](https://github.com/rust-lang/rust-clippy/pull/10098) * [`semicolon_outside_block`] [#9826](https://github.com/rust-lang/rust-clippy/pull/9826) * [`semicolon_inside_block`] [#9826](https://github.com/rust-lang/rust-clippy/pull/9826) * [`transmute_null_to_fn`] [#10099](https://github.com/rust-lang/rust-clippy/pull/10099) * [`fn_null_check`] [#10099](https://github.com/rust-lang/rust-clippy/pull/10099) ### Moves and Deprecations * Moved [`manual_clamp`] to `nursery` (Now allow-by-default) [#10101](https://github.com/rust-lang/rust-clippy/pull/10101) * Moved [`mutex_atomic`] to `restriction` [#10115](https://github.com/rust-lang/rust-clippy/pull/10115) * Renamed `derive_hash_xor_eq` to [`derived_hash_with_manual_eq`] [#10184](https://github.com/rust-lang/rust-clippy/pull/10184) ### Enhancements * [`collapsible_str_replace`]: Now takes MSRV into consideration. The minimal version is 1.58 [#10047](https://github.com/rust-lang/rust-clippy/pull/10047) * [`unused_self`]: No longer lints, if the method body contains a `todo!()` call [#10166](https://github.com/rust-lang/rust-clippy/pull/10166) * [`derivable_impls`]: Now suggests deriving `Default` for enums with default unit variants [#10161](https://github.com/rust-lang/rust-clippy/pull/10161) * [`arithmetic_side_effects`]: Added two new config values `arithmetic-side-effects-allowed-binary` and `arithmetic-side-effects-allowed-unary` to allow operation on user types [#9840](https://github.com/rust-lang/rust-clippy/pull/9840) * [`large_const_arrays`], [`large_stack_arrays`]: avoid integer overflow when calculating total array size [#10103](https://github.com/rust-lang/rust-clippy/pull/10103) * [`indexing_slicing`]: add new config `suppress-restriction-lint-in-const` to enable restriction lints, even if the suggestion might not be applicable [#9920](https://github.com/rust-lang/rust-clippy/pull/9920) * [`needless_borrow`], [`redundant_clone`]: Now track references better and detect more cases [#9701](https://github.com/rust-lang/rust-clippy/pull/9701) * [`derived_hash_with_manual_eq`]: Now allows `#[derive(PartialEq)]` with custom `Hash` implementations [#10184](https://github.com/rust-lang/rust-clippy/pull/10184) * [`manual_is_ascii_check`]: Now detects ranges with `.contains()` calls [#10053](https://github.com/rust-lang/rust-clippy/pull/10053) * [`transmuting_null`]: Now detects `const` pointers to all types [#10099](https://github.com/rust-lang/rust-clippy/pull/10099) * [`needless_return`]: Now detects more cases for returns of owned values [#10110](https://github.com/rust-lang/rust-clippy/pull/10110) ### False Positive Fixes * [`field_reassign_with_default`]: No longer lints cases, where values are initializes from closures capturing struct values [#10143](https://github.com/rust-lang/rust-clippy/pull/10143) * [`seek_to_start_instead_of_rewind`]: No longer lints, if the return of `seek` is used. [#10096](https://github.com/rust-lang/rust-clippy/pull/10096) * [`manual_filter`]: Now ignores if expressions where the else branch has side effects or doesn't return `None` [#10091](https://github.com/rust-lang/rust-clippy/pull/10091) * [`implicit_clone`]: No longer lints if the type doesn't implement clone [#10022](https://github.com/rust-lang/rust-clippy/pull/10022) * [`match_wildcard_for_single_variants`]: No longer lints on wildcards with a guard [#10056](https://github.com/rust-lang/rust-clippy/pull/10056) * [`drop_ref`]: No longer lints idiomatic expression in `match` arms [#10142](https://github.com/rust-lang/rust-clippy/pull/10142) * [`arithmetic_side_effects`]: No longer lints on corner cases with negative number literals [#9867](https://github.com/rust-lang/rust-clippy/pull/9867) * [`string_lit_as_bytes`]: No longer lints in scrutinies of `match` statements [#10012](https://github.com/rust-lang/rust-clippy/pull/10012) * [`manual_assert`]: No longer lints in `else if` statements [#10013](https://github.com/rust-lang/rust-clippy/pull/10013) * [`needless_return`]: don't lint when using `do yeet` [#10109](https://github.com/rust-lang/rust-clippy/pull/10109) * All lints: No longer lint in enum discriminant values when the suggestion won't work in a const context [#10008](https://github.com/rust-lang/rust-clippy/pull/10008) * [`single_element_loop`]: No longer lints, if the loop contains a `break` or `continue` [#10162](https://github.com/rust-lang/rust-clippy/pull/10162) * [`uninlined_format_args`]: No longer suggests inlining arguments in `assert!` and `debug_assert!` macros before 2021 edition [#10055](https://github.com/rust-lang/rust-clippy/pull/10055) * [`explicit_counter_loop`]: No longer ignores counter changes after `continue` expressions [#10094](https://github.com/rust-lang/rust-clippy/pull/10094) * [`from_over_into`]: No longer lints on opaque types [#9982](https://github.com/rust-lang/rust-clippy/pull/9982) * [`expl_impl_clone_on_copy`]: No longer lints on `#[repr(packed)]` structs with generic parameters [#10189](https://github.com/rust-lang/rust-clippy/pull/10189) ### Suggestion Fixes/Improvements * [`zero_ptr`]: Now suggests `core::` paths for `no_std` crates [#10023](https://github.com/rust-lang/rust-clippy/pull/10023) * [`useless_conversion`]: Now suggests removing calls to `into_iter()` on an expression implementing `Iterator` [#10020](https://github.com/rust-lang/rust-clippy/pull/10020) * [`box_default`]: The suggestion now uses short paths [#10153](https://github.com/rust-lang/rust-clippy/pull/10153) * [`default_trait_access`], [`clone_on_copy`]: The suggestion now uses short paths [#10160](https://github.com/rust-lang/rust-clippy/pull/10160) * [`comparison_to_empty`]: The suggestion now removes unused deref operations [#9962](https://github.com/rust-lang/rust-clippy/pull/9962) * [`manual_let_else`]: Suggestions for or-patterns now include required brackets. [#9966](https://github.com/rust-lang/rust-clippy/pull/9966) * [`match_single_binding`]: suggestion no longer introduces unneeded semicolons [#10060](https://github.com/rust-lang/rust-clippy/pull/10060) * [`case_sensitive_file_extension_comparisons`]: Now displays a suggestion with `Path` [#10107](https://github.com/rust-lang/rust-clippy/pull/10107) * [`empty_structs_with_brackets`]: The suggestion is no longer machine applicable, to avoid errors when accessing struct fields [#10141](https://github.com/rust-lang/rust-clippy/pull/10141) * [`identity_op`]: Removes borrows in the suggestion when needed [#10004](https://github.com/rust-lang/rust-clippy/pull/10004) * [`suboptimal_flops`]: The suggestion now includes parentheses when required [#10113](https://github.com/rust-lang/rust-clippy/pull/10113) * [`iter_kv_map`]: Now handles `mut` and reference annotations in the suggestion [#10159](https://github.com/rust-lang/rust-clippy/pull/10159) * [`redundant_static_lifetimes`]: The suggestion no longer removes `mut` from references [#10006](https://github.com/rust-lang/rust-clippy/pull/10006) ### ICE Fixes * [`new_ret_no_self`]: Now avoids a stack overflow for `impl Trait` types [#10086](https://github.com/rust-lang/rust-clippy/pull/10086) * [`unnecessary_to_owned`]: Now handles compiler generated notes better [#10027](https://github.com/rust-lang/rust-clippy/pull/10027) ### Others * `SYSROOT` and `--sysroot` can now be set at the same time [#10149](https://github.com/rust-lang/rust-clippy/pull/10149) * Fix error when providing an `array-size-threshold` in `clippy.toml` [#10423](https://github.com/rust-lang/rust-clippy/pull/10423) ## Rust 1.67 Released 2023-01-26 [View all 104 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2022-10-23T13%3A35%3A19Z..2022-12-01T13%3A34%3A39Z+base%3Amaster) ### New Lints * [`seek_from_current`] [#9681](https://github.com/rust-lang/rust-clippy/pull/9681) * [`from_raw_with_void_ptr`] [#9690](https://github.com/rust-lang/rust-clippy/pull/9690) * [`misnamed_getters`] [#9770](https://github.com/rust-lang/rust-clippy/pull/9770) * [`seek_to_start_instead_of_rewind`] [#9667](https://github.com/rust-lang/rust-clippy/pull/9667) * [`suspicious_xor_used_as_pow`] [#9506](https://github.com/rust-lang/rust-clippy/pull/9506) * [`unnecessary_safety_doc`] [#9822](https://github.com/rust-lang/rust-clippy/pull/9822) * [`unchecked_duration_subtraction`] [#9570](https://github.com/rust-lang/rust-clippy/pull/9570) * [`manual_is_ascii_check`] [#9765](https://github.com/rust-lang/rust-clippy/pull/9765) * [`unnecessary_safety_comment`] [#9851](https://github.com/rust-lang/rust-clippy/pull/9851) * [`let_underscore_future`] [#9760](https://github.com/rust-lang/rust-clippy/pull/9760) * [`manual_let_else`] [#8437](https://github.com/rust-lang/rust-clippy/pull/8437) ### Moves and Deprecations * Moved [`needless_collect`] to `nursery` (Now allow-by-default) [#9705](https://github.com/rust-lang/rust-clippy/pull/9705) * Moved [`or_fun_call`] to `nursery` (Now allow-by-default) [#9829](https://github.com/rust-lang/rust-clippy/pull/9829) * Uplifted [`let_underscore_lock`] into rustc [#9697](https://github.com/rust-lang/rust-clippy/pull/9697) * Uplifted [`let_underscore_drop`] into rustc [#9697](https://github.com/rust-lang/rust-clippy/pull/9697) * Moved [`bool_to_int_with_if`] to `pedantic` (Now allow-by-default) [#9830](https://github.com/rust-lang/rust-clippy/pull/9830) * Move `index_refutable_slice` to `pedantic` (Now warn-by-default) [#9975](https://github.com/rust-lang/rust-clippy/pull/9975) * Moved [`manual_clamp`] to `nursery` (Now allow-by-default) [#10101](https://github.com/rust-lang/rust-clippy/pull/10101) ### Enhancements * The scope of `#![clippy::msrv]` is now tracked correctly [#9924](https://github.com/rust-lang/rust-clippy/pull/9924) * `#[clippy::msrv]` can now be used as an outer attribute [#9860](https://github.com/rust-lang/rust-clippy/pull/9860) * Clippy will now avoid Cargo's cache, if `Cargo.toml` or `clippy.toml` have changed [#9707](https://github.com/rust-lang/rust-clippy/pull/9707) * [`uninlined_format_args`]: Added a new config `allow-mixed-uninlined-format-args` to allow the lint, if only some arguments can be inlined [#9865](https://github.com/rust-lang/rust-clippy/pull/9865) * [`needless_lifetimes`]: Now provides suggests for individual lifetimes [#9743](https://github.com/rust-lang/rust-clippy/pull/9743) * [`needless_collect`]: Now detects needless `is_empty` and `contains` calls [#8744](https://github.com/rust-lang/rust-clippy/pull/8744) * [`blanket_clippy_restriction_lints`]: Now lints, if `clippy::restriction` is enabled via the command line arguments [#9755](https://github.com/rust-lang/rust-clippy/pull/9755) * [`mutable_key_type`]: Now has the `ignore-interior-mutability` configuration, to add types which should be ignored by the lint [#9692](https://github.com/rust-lang/rust-clippy/pull/9692) * [`uninlined_format_args`]: Now works for multiline `format!` expressions [#9945](https://github.com/rust-lang/rust-clippy/pull/9945) * [`cognitive_complexity`]: Now works for async functions [#9828](https://github.com/rust-lang/rust-clippy/pull/9828) [#9836](https://github.com/rust-lang/rust-clippy/pull/9836) * [`vec_box`]: Now avoids an off-by-one error when using the `vec-box-size-threshold` configuration [#9848](https://github.com/rust-lang/rust-clippy/pull/9848) * [`never_loop`]: Now correctly handles breaks in nested labeled blocks [#9858](https://github.com/rust-lang/rust-clippy/pull/9858) [#9837](https://github.com/rust-lang/rust-clippy/pull/9837) * [`disallowed_methods`], [`disallowed_types`], [`disallowed_macros`]: Now correctly resolve paths, if a crate is used multiple times with different versions [#9800](https://github.com/rust-lang/rust-clippy/pull/9800) * [`disallowed_methods`]: Can now be used for local methods [#9800](https://github.com/rust-lang/rust-clippy/pull/9800) * [`print_stdout`], [`print_stderr`]: Can now be enabled in test with the `allow-print-in-tests` config value [#9797](https://github.com/rust-lang/rust-clippy/pull/9797) * [`from_raw_with_void_ptr`]: Now works for `Rc`, `Arc`, `alloc::rc::Weak` and `alloc::sync::Weak` types. [#9700](https://github.com/rust-lang/rust-clippy/pull/9700) * [`needless_borrowed_reference`]: Now works for struct and tuple patterns with wildcards [#9855](https://github.com/rust-lang/rust-clippy/pull/9855) * [`or_fun_call`]: Now supports `map_or` methods [#9689](https://github.com/rust-lang/rust-clippy/pull/9689) * [`unwrap_used`], [`expect_used`]: No longer lints in test code [#9686](https://github.com/rust-lang/rust-clippy/pull/9686) * [`fn_params_excessive_bools`]: Is now emitted with the lint level at the linted function [#9698](https://github.com/rust-lang/rust-clippy/pull/9698) ### False Positive Fixes * [`new_ret_no_self`]: No longer lints when `impl Trait` is returned [#9733](https://github.com/rust-lang/rust-clippy/pull/9733) * [`unnecessary_lazy_evaluations`]: No longer lints, if the type has a significant drop [#9750](https://github.com/rust-lang/rust-clippy/pull/9750) * [`option_if_let_else`]: No longer lints, if any arm has guard [#9747](https://github.com/rust-lang/rust-clippy/pull/9747) * [`explicit_auto_deref`]: No longer lints, if the target type is a projection with generic arguments [#9813](https://github.com/rust-lang/rust-clippy/pull/9813) * [`unnecessary_to_owned`]: No longer lints, if the suggestion effects types [#9796](https://github.com/rust-lang/rust-clippy/pull/9796) * [`needless_borrow`]: No longer lints, if the suggestion is affected by `Deref` [#9674](https://github.com/rust-lang/rust-clippy/pull/9674) * [`unused_unit`]: No longer lints, if lifetimes are bound to the return type [#9849](https://github.com/rust-lang/rust-clippy/pull/9849) * [`mut_mut`]: No longer lints cases with unsized mutable references [#9835](https://github.com/rust-lang/rust-clippy/pull/9835) * [`bool_to_int_with_if`]: No longer lints in const context [#9738](https://github.com/rust-lang/rust-clippy/pull/9738) * [`use_self`]: No longer lints in macros [#9704](https://github.com/rust-lang/rust-clippy/pull/9704) * [`unnecessary_operation`]: No longer lints, if multiple macros are involved [#9981](https://github.com/rust-lang/rust-clippy/pull/9981) * [`allow_attributes_without_reason`]: No longer lints inside external macros [#9630](https://github.com/rust-lang/rust-clippy/pull/9630) * [`question_mark`]: No longer lints for `if let Err()` with an `else` branch [#9722](https://github.com/rust-lang/rust-clippy/pull/9722) * [`unnecessary_cast`]: No longer lints if the identifier and cast originate from different macros [#9980](https://github.com/rust-lang/rust-clippy/pull/9980) * [`arithmetic_side_effects`]: Now detects operations with associated constants [#9592](https://github.com/rust-lang/rust-clippy/pull/9592) * [`explicit_auto_deref`]: No longer lints, if the initial value is not a reference or reference receiver [#9997](https://github.com/rust-lang/rust-clippy/pull/9997) * [`module_name_repetitions`], [`single_component_path_imports`]: Now handle `#[allow]` attributes correctly [#9879](https://github.com/rust-lang/rust-clippy/pull/9879) * [`bool_to_int_with_if`]: No longer lints `if let` statements [#9714](https://github.com/rust-lang/rust-clippy/pull/9714) * [`needless_borrow`]: No longer lints, `if`-`else`-statements that require the borrow [#9791](https://github.com/rust-lang/rust-clippy/pull/9791) * [`needless_borrow`]: No longer lints borrows, if moves were illegal [#9711](https://github.com/rust-lang/rust-clippy/pull/9711) * [`manual_swap`]: No longer lints in const context [#9871](https://github.com/rust-lang/rust-clippy/pull/9871) ### Suggestion Fixes/Improvements * [`missing_safety_doc`], [`missing_errors_doc`], [`missing_panics_doc`]: No longer show the entire item in the lint emission. [#9772](https://github.com/rust-lang/rust-clippy/pull/9772) * [`needless_lifetimes`]: Only suggests `'_` when it's applicable [#9743](https://github.com/rust-lang/rust-clippy/pull/9743) * [`use_self`]: Now suggests full paths correctly [#9726](https://github.com/rust-lang/rust-clippy/pull/9726) * [`redundant_closure_call`]: Now correctly deals with macros during suggestion creation [#9987](https://github.com/rust-lang/rust-clippy/pull/9987) * [`unnecessary_cast`]: Suggestions now correctly deal with references [#9996](https://github.com/rust-lang/rust-clippy/pull/9996) * [`unnecessary_join`]: Suggestions now correctly use [turbofish] operators [#9779](https://github.com/rust-lang/rust-clippy/pull/9779) * [`equatable_if_let`]: Can now suggest `matches!` replacements [#9368](https://github.com/rust-lang/rust-clippy/pull/9368) * [`string_extend_chars`]: Suggestions now correctly work for `str` slices [#9741](https://github.com/rust-lang/rust-clippy/pull/9741) * [`redundant_closure_for_method_calls`]: Suggestions now include angle brackets and generic arguments if needed [#9745](https://github.com/rust-lang/rust-clippy/pull/9745) * [`manual_let_else`]: Suggestions no longer expand macro calls [#9943](https://github.com/rust-lang/rust-clippy/pull/9943) * [`infallible_destructuring_match`]: Suggestions now preserve references [#9850](https://github.com/rust-lang/rust-clippy/pull/9850) * [`result_large_err`]: The error now shows the largest enum variant [#9662](https://github.com/rust-lang/rust-clippy/pull/9662) * [`needless_return`]: Suggestions are now formatted better [#9967](https://github.com/rust-lang/rust-clippy/pull/9967) * [`unused_rounding`]: The suggestion now preserves the original float literal notation [#9870](https://github.com/rust-lang/rust-clippy/pull/9870) [turbofish]: https://turbo.fish/::%3CClippy%3E ### ICE Fixes * [`result_large_err`]: Fixed ICE for empty enums [#10007](https://github.com/rust-lang/rust-clippy/pull/10007) * [`redundant_allocation`]: Fixed ICE for types with bounded variables [#9773](https://github.com/rust-lang/rust-clippy/pull/9773) * [`unused_rounding`]: Fixed ICE, if `_` was used as a separator [#10001](https://github.com/rust-lang/rust-clippy/pull/10001) ## Rust 1.66 Released 2022-12-15 [View all 116 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2022-09-09T17%3A32%3A39Z..2022-10-23T11%3A27%3A24Z+base%3Amaster) ### New Lints * [`manual_clamp`] [#9484](https://github.com/rust-lang/rust-clippy/pull/9484) * [`missing_trait_methods`] [#9670](https://github.com/rust-lang/rust-clippy/pull/9670) * [`unused_format_specs`] [#9637](https://github.com/rust-lang/rust-clippy/pull/9637) * [`iter_kv_map`] [#9409](https://github.com/rust-lang/rust-clippy/pull/9409) * [`manual_filter`] [#9451](https://github.com/rust-lang/rust-clippy/pull/9451) * [`box_default`] [#9511](https://github.com/rust-lang/rust-clippy/pull/9511) * [`implicit_saturating_add`] [#9549](https://github.com/rust-lang/rust-clippy/pull/9549) * [`as_ptr_cast_mut`] [#9572](https://github.com/rust-lang/rust-clippy/pull/9572) * [`disallowed_macros`] [#9495](https://github.com/rust-lang/rust-clippy/pull/9495) * [`partial_pub_fields`] [#9658](https://github.com/rust-lang/rust-clippy/pull/9658) * [`uninlined_format_args`] [#9233](https://github.com/rust-lang/rust-clippy/pull/9233) * [`cast_nan_to_int`] [#9617](https://github.com/rust-lang/rust-clippy/pull/9617) ### Moves and Deprecations * `positional_named_format_parameters` was uplifted to rustc under the new name `named_arguments_used_positionally` [#8518](https://github.com/rust-lang/rust-clippy/pull/8518) * Moved [`implicit_saturating_sub`] to `style` (Now warn-by-default) [#9584](https://github.com/rust-lang/rust-clippy/pull/9584) * Moved `derive_partial_eq_without_eq` to `nursery` (now allow-by-default) [#9536](https://github.com/rust-lang/rust-clippy/pull/9536) ### Enhancements * [`nonstandard_macro_braces`]: Now includes `matches!()` in the default lint config [#9471](https://github.com/rust-lang/rust-clippy/pull/9471) * [`suboptimal_flops`]: Now supports multiplication and subtraction operations [#9581](https://github.com/rust-lang/rust-clippy/pull/9581) * [`arithmetic_side_effects`]: Now detects cases with literals behind references [#9587](https://github.com/rust-lang/rust-clippy/pull/9587) * [`upper_case_acronyms`]: Now also checks enum names [#9580](https://github.com/rust-lang/rust-clippy/pull/9580) * [`needless_borrowed_reference`]: Now lints nested patterns [#9573](https://github.com/rust-lang/rust-clippy/pull/9573) * [`unnecessary_cast`]: Now works for non-trivial non-literal expressions [#9576](https://github.com/rust-lang/rust-clippy/pull/9576) * [`arithmetic_side_effects`]: Now detects operations with custom types [#9559](https://github.com/rust-lang/rust-clippy/pull/9559) * [`disallowed_methods`], [`disallowed_types`]: Not correctly lints types, functions and macros with the same path [#9495](https://github.com/rust-lang/rust-clippy/pull/9495) * [`self_named_module_files`], [`mod_module_files`]: Now take remapped path prefixes into account [#9475](https://github.com/rust-lang/rust-clippy/pull/9475) * [`bool_to_int_with_if`]: Now detects the inverse if case [#9476](https://github.com/rust-lang/rust-clippy/pull/9476) ### False Positive Fixes * [`arithmetic_side_effects`]: Now allows operations that can't overflow [#9474](https://github.com/rust-lang/rust-clippy/pull/9474) * [`unnecessary_lazy_evaluations`]: No longer lints in external macros [#9486](https://github.com/rust-lang/rust-clippy/pull/9486) * [`needless_borrow`], [`explicit_auto_deref`]: No longer lint on unions that require the reference [#9490](https://github.com/rust-lang/rust-clippy/pull/9490) * [`almost_complete_letter_range`]: No longer lints in external macros [#9467](https://github.com/rust-lang/rust-clippy/pull/9467) * [`drop_copy`]: No longer lints on idiomatic cases in match arms [#9491](https://github.com/rust-lang/rust-clippy/pull/9491) * [`question_mark`]: No longer lints in const context [#9487](https://github.com/rust-lang/rust-clippy/pull/9487) * [`collapsible_if`]: Suggestion now work in macros [#9410](https://github.com/rust-lang/rust-clippy/pull/9410) * [`std_instead_of_core`]: No longer triggers on unstable modules [#9545](https://github.com/rust-lang/rust-clippy/pull/9545) * [`unused_peekable`]: No longer lints, if the peak is done in a closure or function [#9465](https://github.com/rust-lang/rust-clippy/pull/9465) * [`useless_attribute`]: No longer lints on `#[allow]` attributes for [`unsafe_removed_from_name`] [#9593](https://github.com/rust-lang/rust-clippy/pull/9593) * [`unnecessary_lazy_evaluations`]: No longer suggest switching to early evaluation when type has custom `Drop` implementation [#9551](https://github.com/rust-lang/rust-clippy/pull/9551) * [`unnecessary_cast`]: No longer lints on negative hexadecimal literals when cast as floats [#9609](https://github.com/rust-lang/rust-clippy/pull/9609) * [`use_self`]: No longer lints in proc macros [#9454](https://github.com/rust-lang/rust-clippy/pull/9454) * [`never_loop`]: Now takes `let ... else` statements into consideration. [#9496](https://github.com/rust-lang/rust-clippy/pull/9496) * [`default_numeric_fallback`]: Now ignores constants [#9636](https://github.com/rust-lang/rust-clippy/pull/9636) * [`uninit_vec`]: No longer lints `Vec::set_len(0)` [#9519](https://github.com/rust-lang/rust-clippy/pull/9519) * [`arithmetic_side_effects`]: Now ignores references to integer types [#9507](https://github.com/rust-lang/rust-clippy/pull/9507) * [`large_stack_arrays`]: No longer lints inside static items [#9466](https://github.com/rust-lang/rust-clippy/pull/9466) * [`ref_option_ref`]: No longer lints if the inner reference is mutable [#9684](https://github.com/rust-lang/rust-clippy/pull/9684) * [`ptr_arg`]: No longer lints if the argument is used as an incomplete trait object [#9645](https://github.com/rust-lang/rust-clippy/pull/9645) * [`should_implement_trait`]: Now also works for `default` methods [#9546](https://github.com/rust-lang/rust-clippy/pull/9546) ### Suggestion Fixes/Improvements * [`derivable_impls`]: The suggestion is now machine applicable [#9429](https://github.com/rust-lang/rust-clippy/pull/9429) * [`match_single_binding`]: The suggestion now handles scrutinies with side effects better [#9601](https://github.com/rust-lang/rust-clippy/pull/9601) * [`zero_prefixed_literal`]: Only suggests using octal numbers, if this is possible [#9652](https://github.com/rust-lang/rust-clippy/pull/9652) * [`rc_buffer`]: The suggestion is no longer machine applicable to avoid semantic changes [#9633](https://github.com/rust-lang/rust-clippy/pull/9633) * [`print_literal`], [`write_literal`], [`uninlined_format_args`]: The suggestion now ignores comments after the macro call. [#9586](https://github.com/rust-lang/rust-clippy/pull/9586) * [`expect_fun_call`]:Improved the suggestion for `format!` calls with captured variables [#9586](https://github.com/rust-lang/rust-clippy/pull/9586) * [`nonstandard_macro_braces`]: The suggestion is now machine applicable and will no longer replace brackets inside the macro argument. [#9499](https://github.com/rust-lang/rust-clippy/pull/9499) * [`from_over_into`]: The suggestion is now a machine applicable and contains explanations [#9649](https://github.com/rust-lang/rust-clippy/pull/9649) * [`needless_return`]: The automatic suggestion now removes all required semicolons [#9497](https://github.com/rust-lang/rust-clippy/pull/9497) * [`to_string_in_format_args`]: The suggestion now keeps parenthesis around values [#9590](https://github.com/rust-lang/rust-clippy/pull/9590) * [`manual_assert`]: The suggestion now preserves comments [#9479](https://github.com/rust-lang/rust-clippy/pull/9479) * [`redundant_allocation`]: The suggestion applicability is now marked `MaybeIncorrect` to avoid semantic changes [#9634](https://github.com/rust-lang/rust-clippy/pull/9634) * [`assertions_on_result_states`]: The suggestion has been corrected, for cases where the `assert!` is not in a statement. [#9453](https://github.com/rust-lang/rust-clippy/pull/9453) * [`nonminimal_bool`]: The suggestion no longer expands macros [#9457](https://github.com/rust-lang/rust-clippy/pull/9457) * [`collapsible_match`]: Now specifies field names, when a struct is destructed [#9685](https://github.com/rust-lang/rust-clippy/pull/9685) * [`unnecessary_cast`]: The suggestion now adds parenthesis for negative numbers [#9577](https://github.com/rust-lang/rust-clippy/pull/9577) * [`redundant_closure`]: The suggestion now works for `impl FnMut` arguments [#9556](https://github.com/rust-lang/rust-clippy/pull/9556) ### ICE Fixes * [`unnecessary_to_owned`]: Avoid ICEs in favor of false negatives if information is missing [#9505](https://github.com/rust-lang/rust-clippy/pull/9505) [#10027](https://github.com/rust-lang/rust-clippy/pull/10027) * [`manual_range_contains`]: No longer ICEs on values behind references [#9627](https://github.com/rust-lang/rust-clippy/pull/9627) * [`needless_pass_by_value`]: No longer ICEs on unsized `dyn Fn` arguments [#9531](https://github.com/rust-lang/rust-clippy/pull/9531) * `*_interior_mutable_const` lints: no longer ICE on const unions containing `!Freeze` types [#9539](https://github.com/rust-lang/rust-clippy/pull/9539) ### Others * Released `rustc_tools_util` for version information on `Crates.io`. (Further adjustments will not be published as part of this changelog) ## Rust 1.65 Released 2022-11-03 [View all 86 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2022-07-29T01%3A09%3A31Z..2022-09-09T00%3A01%3A54Z+base%3Amaster) ### Important Changes * Clippy now has an `--explain ` command to show the lint description in the console [#8952](https://github.com/rust-lang/rust-clippy/pull/8952) ### New Lints * [`unused_peekable`] [#9258](https://github.com/rust-lang/rust-clippy/pull/9258) * [`collapsible_str_replace`] [#9269](https://github.com/rust-lang/rust-clippy/pull/9269) * [`manual_string_new`] [#9295](https://github.com/rust-lang/rust-clippy/pull/9295) * [`iter_on_empty_collections`] [#9187](https://github.com/rust-lang/rust-clippy/pull/9187) * [`iter_on_single_items`] [#9187](https://github.com/rust-lang/rust-clippy/pull/9187) * [`bool_to_int_with_if`] [#9412](https://github.com/rust-lang/rust-clippy/pull/9412) * [`multi_assignments`] [#9379](https://github.com/rust-lang/rust-clippy/pull/9379) * [`result_large_err`] [#9373](https://github.com/rust-lang/rust-clippy/pull/9373) * [`partialeq_to_none`] [#9288](https://github.com/rust-lang/rust-clippy/pull/9288) * [`suspicious_to_owned`] [#8984](https://github.com/rust-lang/rust-clippy/pull/8984) * [`cast_slice_from_raw_parts`] [#9247](https://github.com/rust-lang/rust-clippy/pull/9247) * [`manual_instant_elapsed`] [#9264](https://github.com/rust-lang/rust-clippy/pull/9264) ### Moves and Deprecations * Moved [`significant_drop_in_scrutinee`] to `nursery` (now allow-by-default) [#9302](https://github.com/rust-lang/rust-clippy/pull/9302) * Rename `logic_bug` to [`overly_complex_bool_expr`] [#9306](https://github.com/rust-lang/rust-clippy/pull/9306) * Rename `arithmetic` to [`arithmetic_side_effects`] [#9443](https://github.com/rust-lang/rust-clippy/pull/9443) * Moved [`only_used_in_recursion`] to complexity (now warn-by-default) [#8804](https://github.com/rust-lang/rust-clippy/pull/8804) * Moved [`assertions_on_result_states`] to restriction (now allow-by-default) [#9273](https://github.com/rust-lang/rust-clippy/pull/9273) * Renamed `blacklisted_name` to [`disallowed_names`] [#8974](https://github.com/rust-lang/rust-clippy/pull/8974) ### Enhancements * [`option_if_let_else`]: Now also checks for match expressions [#8696](https://github.com/rust-lang/rust-clippy/pull/8696) * [`explicit_auto_deref`]: Now lints on implicit returns in closures [#9126](https://github.com/rust-lang/rust-clippy/pull/9126) * [`needless_borrow`]: Now considers trait implementations [#9136](https://github.com/rust-lang/rust-clippy/pull/9136) * [`suboptimal_flops`], [`imprecise_flops`]: Now lint on constant expressions [#9404](https://github.com/rust-lang/rust-clippy/pull/9404) * [`if_let_mutex`]: Now detects mutex behind references and warns about deadlocks [#9318](https://github.com/rust-lang/rust-clippy/pull/9318) ### False Positive Fixes * [`unit_arg`] [`default_trait_access`] [`missing_docs_in_private_items`]: No longer trigger in code generated from proc-macros [#8694](https://github.com/rust-lang/rust-clippy/pull/8694) * [`unwrap_used`]: Now lints uses of `unwrap_err` [#9338](https://github.com/rust-lang/rust-clippy/pull/9338) * [`expect_used`]: Now lints uses of `expect_err` [#9338](https://github.com/rust-lang/rust-clippy/pull/9338) * [`transmute_undefined_repr`]: Now longer lints if the first field is compatible with the other type [#9287](https://github.com/rust-lang/rust-clippy/pull/9287) * [`unnecessary_to_owned`]: No longer lints, if type change cased errors in the caller function [#9424](https://github.com/rust-lang/rust-clippy/pull/9424) * [`match_like_matches_macro`]: No longer lints, if there are comments inside the match expression [#9276](https://github.com/rust-lang/rust-clippy/pull/9276) * [`partialeq_to_none`]: No longer trigger in code generated from macros [#9389](https://github.com/rust-lang/rust-clippy/pull/9389) * [`arithmetic_side_effects`]: No longer lints expressions that only use literals [#9365](https://github.com/rust-lang/rust-clippy/pull/9365) * [`explicit_auto_deref`]: Now ignores references on block expressions when the type is `Sized`, on `dyn Trait` returns and when the suggestion is non-trivial [#9126](https://github.com/rust-lang/rust-clippy/pull/9126) * [`trait_duplication_in_bounds`]: Now better tracks bounds to avoid false positives [#9167](https://github.com/rust-lang/rust-clippy/pull/9167) * [`format_in_format_args`]: Now suggests cases where the result is formatted again [#9349](https://github.com/rust-lang/rust-clippy/pull/9349) * [`only_used_in_recursion`]: No longer lints on function without recursions and takes external functions into account [#8804](https://github.com/rust-lang/rust-clippy/pull/8804) * [`missing_const_for_fn`]: No longer lints in proc-macros [#9308](https://github.com/rust-lang/rust-clippy/pull/9308) * [`non_ascii_literal`]: Allow non-ascii comments in tests and make sure `#[allow]` attributes work in tests [#9327](https://github.com/rust-lang/rust-clippy/pull/9327) * [`question_mark`]: No longer lint `if let`s with subpatterns [#9348](https://github.com/rust-lang/rust-clippy/pull/9348) * [`needless_collect`]: No longer lints in loops [#8992](https://github.com/rust-lang/rust-clippy/pull/8992) * [`mut_mutex_lock`]: No longer lints if the mutex is behind an immutable reference [#9418](https://github.com/rust-lang/rust-clippy/pull/9418) * [`needless_return`]: Now ignores returns with arguments [#9381](https://github.com/rust-lang/rust-clippy/pull/9381) * [`range_plus_one`], [`range_minus_one`]: Now ignores code with macros [#9446](https://github.com/rust-lang/rust-clippy/pull/9446) * [`assertions_on_result_states`]: No longer lints on the unit type [#9273](https://github.com/rust-lang/rust-clippy/pull/9273) ### Suggestion Fixes/Improvements * [`unwrap_or_else_default`]: Now suggests `unwrap_or_default()` for empty strings [#9421](https://github.com/rust-lang/rust-clippy/pull/9421) * [`if_then_some_else_none`]: Now also suggests `bool::then_some` [#9289](https://github.com/rust-lang/rust-clippy/pull/9289) * [`redundant_closure_call`]: The suggestion now works for async closures [#9053](https://github.com/rust-lang/rust-clippy/pull/9053) * [`suboptimal_flops`]: Now suggests parenthesis when they are required [#9394](https://github.com/rust-lang/rust-clippy/pull/9394) * [`case_sensitive_file_extension_comparisons`]: Now suggests `map_or(..)` instead of `map(..).unwrap_or` [#9341](https://github.com/rust-lang/rust-clippy/pull/9341) * Deprecated configuration values can now be updated automatically [#9252](https://github.com/rust-lang/rust-clippy/pull/9252) * [`or_fun_call`]: Now suggest `Entry::or_default` for `Entry::or_insert(Default::default())` [#9342](https://github.com/rust-lang/rust-clippy/pull/9342) * [`unwrap_used`]: Only suggests `expect` if [`expect_used`] is allowed [#9223](https://github.com/rust-lang/rust-clippy/pull/9223) ### ICE Fixes * Fix ICE in [`useless_format`] for literals [#9406](https://github.com/rust-lang/rust-clippy/pull/9406) * Fix infinite loop in [`vec_init_then_push`] [#9441](https://github.com/rust-lang/rust-clippy/pull/9441) * Fix ICE when reading literals with weird proc-macro spans [#9303](https://github.com/rust-lang/rust-clippy/pull/9303) ## Rust 1.64 Released 2022-09-22 [View all 110 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2022-06-17T21%3A25%3A31Z..2022-07-28T17%3A11%3A18Z+base%3Amaster) ### New Lints * [`arithmetic_side_effects`] [#9130](https://github.com/rust-lang/rust-clippy/pull/9130) * [`invalid_utf8_in_unchecked`] [#9105](https://github.com/rust-lang/rust-clippy/pull/9105) * [`assertions_on_result_states`] [#9225](https://github.com/rust-lang/rust-clippy/pull/9225) * [`manual_find`] [#8649](https://github.com/rust-lang/rust-clippy/pull/8649) * [`manual_retain`] [#8972](https://github.com/rust-lang/rust-clippy/pull/8972) * [`default_instead_of_iter_empty`] [#8989](https://github.com/rust-lang/rust-clippy/pull/8989) * [`manual_rem_euclid`] [#9031](https://github.com/rust-lang/rust-clippy/pull/9031) * [`obfuscated_if_else`] [#9148](https://github.com/rust-lang/rust-clippy/pull/9148) * [`std_instead_of_core`] [#9103](https://github.com/rust-lang/rust-clippy/pull/9103) * [`std_instead_of_alloc`] [#9103](https://github.com/rust-lang/rust-clippy/pull/9103) * [`alloc_instead_of_core`] [#9103](https://github.com/rust-lang/rust-clippy/pull/9103) * [`explicit_auto_deref`] [#8355](https://github.com/rust-lang/rust-clippy/pull/8355) ### Moves and Deprecations * Moved [`format_push_string`] to `restriction` (now allow-by-default) [#9161](https://github.com/rust-lang/rust-clippy/pull/9161) ### Enhancements * [`significant_drop_in_scrutinee`]: Now gives more context in the lint message [#8981](https://github.com/rust-lang/rust-clippy/pull/8981) * [`single_match`], [`single_match_else`]: Now catches more `Option` cases [#8985](https://github.com/rust-lang/rust-clippy/pull/8985) * [`unused_async`]: Now works for async methods [#9025](https://github.com/rust-lang/rust-clippy/pull/9025) * [`manual_filter_map`], [`manual_find_map`]: Now lint more expressions [#8958](https://github.com/rust-lang/rust-clippy/pull/8958) * [`question_mark`]: Now works for simple `if let` expressions [#8356](https://github.com/rust-lang/rust-clippy/pull/8356) * [`undocumented_unsafe_blocks`]: Now finds comments before the start of closures [#9117](https://github.com/rust-lang/rust-clippy/pull/9117) * [`trait_duplication_in_bounds`]: Now catches duplicate bounds in where clauses [#8703](https://github.com/rust-lang/rust-clippy/pull/8703) * [`shadow_reuse`], [`shadow_same`], [`shadow_unrelated`]: Now lint in const blocks [#9124](https://github.com/rust-lang/rust-clippy/pull/9124) * [`slow_vector_initialization`]: Now detects cases with `vec.capacity()` [#8953](https://github.com/rust-lang/rust-clippy/pull/8953) * [`unused_self`]: Now respects the `avoid-breaking-exported-api` config option [#9199](https://github.com/rust-lang/rust-clippy/pull/9199) * [`box_collection`]: Now supports all std collections [#9170](https://github.com/rust-lang/rust-clippy/pull/9170) ### False Positive Fixes * [`significant_drop_in_scrutinee`]: Now ignores calls to `IntoIterator::into_iter` [#9140](https://github.com/rust-lang/rust-clippy/pull/9140) * [`while_let_loop`]: Now ignores cases when the significant drop order would change [#8981](https://github.com/rust-lang/rust-clippy/pull/8981) * [`branches_sharing_code`]: Now ignores cases where moved variables have a significant drop or variable modifications can affect the conditions [#9138](https://github.com/rust-lang/rust-clippy/pull/9138) * [`let_underscore_lock`]: Now ignores bindings that aren't locked [#8990](https://github.com/rust-lang/rust-clippy/pull/8990) * [`trivially_copy_pass_by_ref`]: Now tracks lifetimes and ignores cases where unsafe pointers are used [#8639](https://github.com/rust-lang/rust-clippy/pull/8639) * [`let_unit_value`]: No longer ignores `#[allow]` attributes on the value [#9082](https://github.com/rust-lang/rust-clippy/pull/9082) * [`declare_interior_mutable_const`]: Now ignores the `thread_local!` macro [#9015](https://github.com/rust-lang/rust-clippy/pull/9015) * [`if_same_then_else`]: Now ignores branches with `todo!` and `unimplemented!` [#9006](https://github.com/rust-lang/rust-clippy/pull/9006) * [`enum_variant_names`]: Now ignores names with `_` prefixes [#9032](https://github.com/rust-lang/rust-clippy/pull/9032) * [`let_unit_value`]: Now ignores cases, where the unit type is manually specified [#9056](https://github.com/rust-lang/rust-clippy/pull/9056) * [`match_same_arms`]: Now ignores branches with `todo!` [#9207](https://github.com/rust-lang/rust-clippy/pull/9207) * [`assign_op_pattern`]: Ignores cases that break borrowing rules [#9214](https://github.com/rust-lang/rust-clippy/pull/9214) * [`extra_unused_lifetimes`]: No longer triggers in derive macros [#9037](https://github.com/rust-lang/rust-clippy/pull/9037) * [`mismatching_type_param_order`]: Now ignores complicated generic parameters [#9146](https://github.com/rust-lang/rust-clippy/pull/9146) * [`equatable_if_let`]: No longer lints in macros [#9074](https://github.com/rust-lang/rust-clippy/pull/9074) * [`new_without_default`]: Now ignores generics and lifetime parameters on `fn new` [#9115](https://github.com/rust-lang/rust-clippy/pull/9115) * [`needless_borrow`]: Now ignores cases that result in the execution of different traits [#9096](https://github.com/rust-lang/rust-clippy/pull/9096) * [`declare_interior_mutable_const`]: No longer triggers in thread-local initializers [#9246](https://github.com/rust-lang/rust-clippy/pull/9246) ### Suggestion Fixes/Improvements * [`type_repetition_in_bounds`]: The suggestion now works with maybe bounds [#9132](https://github.com/rust-lang/rust-clippy/pull/9132) * [`transmute_ptr_to_ref`]: Now suggests `pointer::cast` when possible [#8939](https://github.com/rust-lang/rust-clippy/pull/8939) * [`useless_format`]: Now suggests the correct variable name [#9237](https://github.com/rust-lang/rust-clippy/pull/9237) * [`or_fun_call`]: The lint emission will now only span over the `unwrap_or` call [#9144](https://github.com/rust-lang/rust-clippy/pull/9144) * [`neg_multiply`]: Now suggests adding parentheses around suggestion if needed [#9026](https://github.com/rust-lang/rust-clippy/pull/9026) * [`unnecessary_lazy_evaluations`]: Now suggest for `bool::then_some` for lazy evaluation [#9099](https://github.com/rust-lang/rust-clippy/pull/9099) * [`manual_flatten`]: Improved message for long code snippets [#9156](https://github.com/rust-lang/rust-clippy/pull/9156) * [`explicit_counter_loop`]: The suggestion is now machine applicable [#9149](https://github.com/rust-lang/rust-clippy/pull/9149) * [`needless_borrow`]: Now keeps parentheses around fields, when needed [#9210](https://github.com/rust-lang/rust-clippy/pull/9210) * [`while_let_on_iterator`]: The suggestion now works in `FnOnce` closures [#9134](https://github.com/rust-lang/rust-clippy/pull/9134) ### ICE Fixes * Fix ICEs related to `#![feature(generic_const_exprs)]` usage [#9241](https://github.com/rust-lang/rust-clippy/pull/9241) * Fix ICEs related to reference lints [#9093](https://github.com/rust-lang/rust-clippy/pull/9093) * [`question_mark`]: Fix ICE on zero field tuple structs [#9244](https://github.com/rust-lang/rust-clippy/pull/9244) ### Documentation Improvements * [`needless_option_take`]: Now includes a "What it does" and "Why is this bad?" section. [#9022](https://github.com/rust-lang/rust-clippy/pull/9022) ### Others * Using `--cap-lints=allow` and only `--force-warn`ing some will now work with Clippy's driver [#9036](https://github.com/rust-lang/rust-clippy/pull/9036) * Clippy now tries to read the `rust-version` from `Cargo.toml` to identify the minimum supported rust version [#8774](https://github.com/rust-lang/rust-clippy/pull/8774) ## Rust 1.63 Released 2022-08-11 [View all 91 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2022-05-05T17%3A24%3A22Z..2022-06-16T14%3A24%3A48Z+base%3Amaster) ### New Lints * [`borrow_deref_ref`] [#7930](https://github.com/rust-lang/rust-clippy/pull/7930) * [`doc_link_with_quotes`] [#8385](https://github.com/rust-lang/rust-clippy/pull/8385) * [`no_effect_replace`] [#8754](https://github.com/rust-lang/rust-clippy/pull/8754) * [`rc_clone_in_vec_init`] [#8769](https://github.com/rust-lang/rust-clippy/pull/8769) * [`derive_partial_eq_without_eq`] [#8796](https://github.com/rust-lang/rust-clippy/pull/8796) * [`mismatching_type_param_order`] [#8831](https://github.com/rust-lang/rust-clippy/pull/8831) * [`duplicate_mod`] [#8832](https://github.com/rust-lang/rust-clippy/pull/8832) * [`unused_rounding`] [#8866](https://github.com/rust-lang/rust-clippy/pull/8866) * [`get_first`] [#8882](https://github.com/rust-lang/rust-clippy/pull/8882) * [`swap_ptr_to_ref`] [#8916](https://github.com/rust-lang/rust-clippy/pull/8916) * [`almost_complete_letter_range`] [#8918](https://github.com/rust-lang/rust-clippy/pull/8918) * [`needless_parens_on_range_literals`] [#8933](https://github.com/rust-lang/rust-clippy/pull/8933) * [`as_underscore`] [#8934](https://github.com/rust-lang/rust-clippy/pull/8934) ### Moves and Deprecations * Rename `eval_order_dependence` to [`mixed_read_write_in_expression`], move to `nursery` [#8621](https://github.com/rust-lang/rust-clippy/pull/8621) ### Enhancements * [`undocumented_unsafe_blocks`]: Now also lints on unsafe trait implementations [#8761](https://github.com/rust-lang/rust-clippy/pull/8761) * [`empty_line_after_outer_attr`]: Now also lints on argumentless macros [#8790](https://github.com/rust-lang/rust-clippy/pull/8790) * [`expect_used`]: Now can be disabled in tests with the `allow-expect-in-tests` option [#8802](https://github.com/rust-lang/rust-clippy/pull/8802) * [`unwrap_used`]: Now can be disabled in tests with the `allow-unwrap-in-tests` option [#8802](https://github.com/rust-lang/rust-clippy/pull/8802) * [`disallowed_methods`]: Now also lints indirect usages [#8852](https://github.com/rust-lang/rust-clippy/pull/8852) * [`get_last_with_len`]: Now also lints `VecDeque` and any deref to slice [#8862](https://github.com/rust-lang/rust-clippy/pull/8862) * [`manual_range_contains`]: Now also lints on chains of `&&` and `||` [#8884](https://github.com/rust-lang/rust-clippy/pull/8884) * [`rc_clone_in_vec_init`]: Now also lints on `Weak` [#8885](https://github.com/rust-lang/rust-clippy/pull/8885) * [`dbg_macro`]: Introduce `allow-dbg-in-tests` config option [#8897](https://github.com/rust-lang/rust-clippy/pull/8897) * [`use_self`]: Now also lints on `TupleStruct` and `Struct` patterns [#8899](https://github.com/rust-lang/rust-clippy/pull/8899) * [`manual_find_map`] and [`manual_filter_map`]: Now also lints on more complex method chains inside `map` [#8930](https://github.com/rust-lang/rust-clippy/pull/8930) * [`needless_return`]: Now also lints on macro expressions in return statements [#8932](https://github.com/rust-lang/rust-clippy/pull/8932) * [`doc_markdown`]: Users can now indicate, that the `doc-valid-idents` config should extend the default and not replace it [#8944](https://github.com/rust-lang/rust-clippy/pull/8944) * [`disallowed_names`]: Users can now indicate, that the `disallowed-names` config should extend the default and not replace it [#8944](https://github.com/rust-lang/rust-clippy/pull/8944) * [`never_loop`]: Now checks for `continue` in struct expression [#9002](https://github.com/rust-lang/rust-clippy/pull/9002) ### False Positive Fixes * [`useless_transmute`]: No longer lints on types with erased regions [#8564](https://github.com/rust-lang/rust-clippy/pull/8564) * [`vec_init_then_push`]: No longer lints when further extended [#8699](https://github.com/rust-lang/rust-clippy/pull/8699) * [`cmp_owned`]: No longer lints on `From::from` for `Copy` types [#8807](https://github.com/rust-lang/rust-clippy/pull/8807) * [`redundant_allocation`]: No longer lints on fat pointers that would become thin pointers [#8813](https://github.com/rust-lang/rust-clippy/pull/8813) * [`derive_partial_eq_without_eq`]: * Handle differing predicates applied by `#[derive(PartialEq)]` and `#[derive(Eq)]` [#8869](https://github.com/rust-lang/rust-clippy/pull/8869) * No longer lints on non-public types and better handles generics [#8950](https://github.com/rust-lang/rust-clippy/pull/8950) * [`empty_line_after_outer_attr`]: No longer lints empty lines in inner string values [#8892](https://github.com/rust-lang/rust-clippy/pull/8892) * [`branches_sharing_code`]: No longer lints when using different binding names [#8901](https://github.com/rust-lang/rust-clippy/pull/8901) * [`significant_drop_in_scrutinee`]: No longer lints on Try `?` and `await` desugared expressions [#8902](https://github.com/rust-lang/rust-clippy/pull/8902) * [`checked_conversions`]: No longer lints in `const` contexts [#8907](https://github.com/rust-lang/rust-clippy/pull/8907) * [`iter_overeager_cloned`]: No longer lints on `.cloned().flatten()` when `T::Item` doesn't implement `IntoIterator` [#8960](https://github.com/rust-lang/rust-clippy/pull/8960) ### Suggestion Fixes/Improvements * [`vec_init_then_push`]: Suggest to remove `mut` binding when possible [#8699](https://github.com/rust-lang/rust-clippy/pull/8699) * [`manual_range_contains`]: Fix suggestion for integers with different signs [#8763](https://github.com/rust-lang/rust-clippy/pull/8763) * [`identity_op`]: Add parenthesis to suggestions where required [#8786](https://github.com/rust-lang/rust-clippy/pull/8786) * [`cast_lossless`]: No longer gives wrong suggestion on `usize`/`isize`->`f64` [#8778](https://github.com/rust-lang/rust-clippy/pull/8778) * [`rc_clone_in_vec_init`]: Add suggestion [#8814](https://github.com/rust-lang/rust-clippy/pull/8814) * The "unknown field" error messages for config files now wraps the field names [#8823](https://github.com/rust-lang/rust-clippy/pull/8823) * [`cast_abs_to_unsigned`]: Do not remove cast if it's required [#8876](https://github.com/rust-lang/rust-clippy/pull/8876) * [`significant_drop_in_scrutinee`]: Improve lint message for types that are not references and not trivially clone-able [#8902](https://github.com/rust-lang/rust-clippy/pull/8902) * [`for_loops_over_fallibles`]: Now suggests the correct variant of `iter()`, `iter_mut()` or `into_iter()` [#8941](https://github.com/rust-lang/rust-clippy/pull/8941) ### ICE Fixes * Fix ICE in [`let_unit_value`] when calling a `static`/`const` callable type [#8835](https://github.com/rust-lang/rust-clippy/pull/8835) * Fix ICEs on callable `static`/`const`s [#8896](https://github.com/rust-lang/rust-clippy/pull/8896) * [`needless_late_init`] [#8912](https://github.com/rust-lang/rust-clippy/pull/8912) * Fix ICE in shadow lints [#8913](https://github.com/rust-lang/rust-clippy/pull/8913) ### Documentation Improvements * Clippy has a [Book](https://doc.rust-lang.org/nightly/clippy/) now! [#7359](https://github.com/rust-lang/rust-clippy/pull/7359) * Add a *copy lint name*-button to Clippy's lint list [#8839](https://github.com/rust-lang/rust-clippy/pull/8839) * Display past names of renamed lints on Clippy's lint list [#8843](https://github.com/rust-lang/rust-clippy/pull/8843) * Add the ability to show the lint output in the lint list [#8947](https://github.com/rust-lang/rust-clippy/pull/8947) ## Rust 1.62 Released 2022-06-30 [View all 90 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2022-03-25T17%3A22%3A30Z..2022-05-05T13%3A29%3A44Z+base%3Amaster) ### New Lints * [`large_include_file`] [#8727](https://github.com/rust-lang/rust-clippy/pull/8727) * [`cast_abs_to_unsigned`] [#8635](https://github.com/rust-lang/rust-clippy/pull/8635) * [`err_expect`] [#8606](https://github.com/rust-lang/rust-clippy/pull/8606) * [`unnecessary_owned_empty_strings`] [#8660](https://github.com/rust-lang/rust-clippy/pull/8660) * [`empty_structs_with_brackets`] [#8594](https://github.com/rust-lang/rust-clippy/pull/8594) * [`crate_in_macro_def`] [#8576](https://github.com/rust-lang/rust-clippy/pull/8576) * [`needless_option_take`] [#8665](https://github.com/rust-lang/rust-clippy/pull/8665) * [`bytes_count_to_len`] [#8711](https://github.com/rust-lang/rust-clippy/pull/8711) * [`is_digit_ascii_radix`] [#8624](https://github.com/rust-lang/rust-clippy/pull/8624) * [`await_holding_invalid_type`] [#8707](https://github.com/rust-lang/rust-clippy/pull/8707) * [`trim_split_whitespace`] [#8575](https://github.com/rust-lang/rust-clippy/pull/8575) * [`pub_use`] [#8670](https://github.com/rust-lang/rust-clippy/pull/8670) * [`format_push_string`] [#8626](https://github.com/rust-lang/rust-clippy/pull/8626) * [`empty_drop`] [#8571](https://github.com/rust-lang/rust-clippy/pull/8571) * [`drop_non_drop`] [#8630](https://github.com/rust-lang/rust-clippy/pull/8630) * [`forget_non_drop`] [#8630](https://github.com/rust-lang/rust-clippy/pull/8630) ### Moves and Deprecations * Move [`only_used_in_recursion`] to `nursery` (now allow-by-default) [#8783](https://github.com/rust-lang/rust-clippy/pull/8783) * Move [`stable_sort_primitive`] to `pedantic` (now allow-by-default) [#8716](https://github.com/rust-lang/rust-clippy/pull/8716) ### Enhancements * Remove overlap between [`manual_split_once`] and [`needless_splitn`] [#8631](https://github.com/rust-lang/rust-clippy/pull/8631) * [`map_identity`]: Now checks for needless `map_err` [#8487](https://github.com/rust-lang/rust-clippy/pull/8487) * [`extra_unused_lifetimes`]: Now checks for impl lifetimes [#8737](https://github.com/rust-lang/rust-clippy/pull/8737) * [`cast_possible_truncation`]: Now catches more cases with larger shift or divide operations [#8687](https://github.com/rust-lang/rust-clippy/pull/8687) * [`identity_op`]: Now checks for modulo expressions [#8519](https://github.com/rust-lang/rust-clippy/pull/8519) * [`panic`]: No longer lint in constant context [#8592](https://github.com/rust-lang/rust-clippy/pull/8592) * [`manual_split_once`]: Now lints manual iteration of `splitn` [#8717](https://github.com/rust-lang/rust-clippy/pull/8717) * [`self_named_module_files`], [`mod_module_files`]: Now handle relative module paths [#8611](https://github.com/rust-lang/rust-clippy/pull/8611) * [`unsound_collection_transmute`]: Now has better size and alignment checks [#8648](https://github.com/rust-lang/rust-clippy/pull/8648) * [`unnested_or_patterns`]: Ignore cases, where the suggestion would be longer [#8619](https://github.com/rust-lang/rust-clippy/pull/8619) ### False Positive Fixes * [`rest_pat_in_fully_bound_structs`]: Now ignores structs marked with `#[non_exhaustive]` [#8690](https://github.com/rust-lang/rust-clippy/pull/8690) * [`needless_late_init`]: No longer lints `if let` statements, `let mut` bindings or instances that changes the drop order significantly [#8617](https://github.com/rust-lang/rust-clippy/pull/8617) * [`unnecessary_cast`]: No longer lints to casts to aliased or non-primitive types [#8596](https://github.com/rust-lang/rust-clippy/pull/8596) * [`init_numbered_fields`]: No longer lints type aliases [#8780](https://github.com/rust-lang/rust-clippy/pull/8780) * [`needless_option_as_deref`]: No longer lints for `as_deref_mut` on `Option` values that can't be moved [#8646](https://github.com/rust-lang/rust-clippy/pull/8646) * [`mistyped_literal_suffixes`]: Now ignores float literals without an exponent [#8742](https://github.com/rust-lang/rust-clippy/pull/8742) * [`undocumented_unsafe_blocks`]: Now ignores unsafe blocks from proc-macros and works better for sub-expressions [#8450](https://github.com/rust-lang/rust-clippy/pull/8450) * [`same_functions_in_if_condition`]: Now allows different constants, even if they have the same value [#8673](https://github.com/rust-lang/rust-clippy/pull/8673) * [`needless_match`]: Now checks for more complex types and ignores type coercion [#8549](https://github.com/rust-lang/rust-clippy/pull/8549) * [`assertions_on_constants`]: Now ignores constants from `cfg!` macros [#8614](https://github.com/rust-lang/rust-clippy/pull/8614) * [`indexing_slicing`]: Fix false positives with constant indices in [#8588](https://github.com/rust-lang/rust-clippy/pull/8588) * [`iter_with_drain`]: Now ignores iterator references [#8668](https://github.com/rust-lang/rust-clippy/pull/8668) * [`useless_attribute`]: Now allows [`redundant_pub_crate`] on `use` items [#8743](https://github.com/rust-lang/rust-clippy/pull/8743) * [`cast_ptr_alignment`]: Now ignores expressions, when used for unaligned reads and writes [#8632](https://github.com/rust-lang/rust-clippy/pull/8632) * [`wrong_self_convention`]: Now allows `&mut self` and no self as arguments for `is_*` methods [#8738](https://github.com/rust-lang/rust-clippy/pull/8738) * [`mut_from_ref`]: Only lint in unsafe code [#8647](https://github.com/rust-lang/rust-clippy/pull/8647) * [`redundant_pub_crate`]: Now allows macro exports [#8736](https://github.com/rust-lang/rust-clippy/pull/8736) * [`needless_match`]: Ignores cases where the else block expression is different [#8700](https://github.com/rust-lang/rust-clippy/pull/8700) * [`transmute_int_to_char`]: Now allows transmutations in `const` code [#8610](https://github.com/rust-lang/rust-clippy/pull/8610) * [`manual_non_exhaustive`]: Ignores cases, where the enum value is used [#8645](https://github.com/rust-lang/rust-clippy/pull/8645) * [`redundant_closure`]: Now ignores coerced closure [#8431](https://github.com/rust-lang/rust-clippy/pull/8431) * [`identity_op`]: Is now ignored in cases where extra brackets would be needed [#8730](https://github.com/rust-lang/rust-clippy/pull/8730) * [`let_unit_value`]: Now ignores cases which are used for type inference [#8563](https://github.com/rust-lang/rust-clippy/pull/8563) ### Suggestion Fixes/Improvements * [`manual_split_once`]: Fixed incorrect suggestions for single result accesses [#8631](https://github.com/rust-lang/rust-clippy/pull/8631) * [`bytes_nth`]: Fix typos in the diagnostic message [#8403](https://github.com/rust-lang/rust-clippy/pull/8403) * [`mistyped_literal_suffixes`]: Now suggests the correct integer types [#8742](https://github.com/rust-lang/rust-clippy/pull/8742) * [`unnecessary_to_owned`]: Fixed suggestion based on the configured msrv [#8692](https://github.com/rust-lang/rust-clippy/pull/8692) * [`single_element_loop`]: Improve lint for Edition 2021 arrays [#8616](https://github.com/rust-lang/rust-clippy/pull/8616) * [`manual_bits`]: Now includes a cast for proper type conversion, when needed [#8677](https://github.com/rust-lang/rust-clippy/pull/8677) * [`option_map_unit_fn`], [`result_map_unit_fn`]: Fix some incorrect suggestions [#8584](https://github.com/rust-lang/rust-clippy/pull/8584) * [`collapsible_else_if`]: Add whitespace in suggestion [#8729](https://github.com/rust-lang/rust-clippy/pull/8729) * [`transmute_bytes_to_str`]: Now suggest `from_utf8_unchecked` in `const` context [#8612](https://github.com/rust-lang/rust-clippy/pull/8612) * [`map_clone`]: Improve message and suggestion based on the msrv [#8688](https://github.com/rust-lang/rust-clippy/pull/8688) * [`needless_late_init`]: Now shows the `let` statement where it was first initialized [#8779](https://github.com/rust-lang/rust-clippy/pull/8779) ### ICE Fixes * [`only_used_in_recursion`] [#8691](https://github.com/rust-lang/rust-clippy/pull/8691) * [`cast_slice_different_sizes`] [#8720](https://github.com/rust-lang/rust-clippy/pull/8720) * [`iter_overeager_cloned`] [#8602](https://github.com/rust-lang/rust-clippy/pull/8602) * [`undocumented_unsafe_blocks`] [#8686](https://github.com/rust-lang/rust-clippy/pull/8686) ## Rust 1.61 Released 2022-05-19 [View all 60 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2022-02-11T16%3A54%3A41Z..2022-03-24T13%3A42%3A25Z+base%3Amaster) ### New Lints * [`only_used_in_recursion`] [#8422](https://github.com/rust-lang/rust-clippy/pull/8422) * [`cast_enum_truncation`] [#8381](https://github.com/rust-lang/rust-clippy/pull/8381) * [`missing_spin_loop`] [#8174](https://github.com/rust-lang/rust-clippy/pull/8174) * [`deref_by_slicing`] [#8218](https://github.com/rust-lang/rust-clippy/pull/8218) * [`needless_match`] [#8471](https://github.com/rust-lang/rust-clippy/pull/8471) * [`allow_attributes_without_reason`] (Requires `#![feature(lint_reasons)]`) [#8504](https://github.com/rust-lang/rust-clippy/pull/8504) * [`print_in_format_impl`] [#8253](https://github.com/rust-lang/rust-clippy/pull/8253) * [`unnecessary_find_map`] [#8489](https://github.com/rust-lang/rust-clippy/pull/8489) * [`or_then_unwrap`] [#8561](https://github.com/rust-lang/rust-clippy/pull/8561) * [`unnecessary_join`] [#8579](https://github.com/rust-lang/rust-clippy/pull/8579) * [`iter_with_drain`] [#8483](https://github.com/rust-lang/rust-clippy/pull/8483) * [`cast_enum_constructor`] [#8562](https://github.com/rust-lang/rust-clippy/pull/8562) * [`cast_slice_different_sizes`] [#8445](https://github.com/rust-lang/rust-clippy/pull/8445) ### Moves and Deprecations * Moved [`transmute_undefined_repr`] to `nursery` (now allow-by-default) [#8432](https://github.com/rust-lang/rust-clippy/pull/8432) * Moved [`try_err`] to `restriction` [#8544](https://github.com/rust-lang/rust-clippy/pull/8544) * Move [`iter_with_drain`] to `nursery` [#8541](https://github.com/rust-lang/rust-clippy/pull/8541) * Renamed `to_string_in_display` to [`recursive_format_impl`] [#8188](https://github.com/rust-lang/rust-clippy/pull/8188) ### Enhancements * [`dbg_macro`]: The lint level can now be set with crate attributes and works inside macros [#8411](https://github.com/rust-lang/rust-clippy/pull/8411) * [`ptr_as_ptr`]: Now works inside macros [#8442](https://github.com/rust-lang/rust-clippy/pull/8442) * [`use_self`]: Now works for variants in match expressions [#8456](https://github.com/rust-lang/rust-clippy/pull/8456) * [`await_holding_lock`]: Now lints for `parking_lot::{Mutex, RwLock}` [#8419](https://github.com/rust-lang/rust-clippy/pull/8419) * [`recursive_format_impl`]: Now checks for format calls on `self` [#8188](https://github.com/rust-lang/rust-clippy/pull/8188) ### False Positive Fixes * [`new_without_default`]: No longer lints for `new()` methods with `#[doc(hidden)]` [#8472](https://github.com/rust-lang/rust-clippy/pull/8472) * [`transmute_undefined_repr`]: No longer lints for single field structs with `#[repr(C)]`, generic parameters, wide pointers, unions, tuples and allow several forms of type erasure [#8425](https://github.com/rust-lang/rust-clippy/pull/8425) [#8553](https://github.com/rust-lang/rust-clippy/pull/8553) [#8440](https://github.com/rust-lang/rust-clippy/pull/8440) [#8547](https://github.com/rust-lang/rust-clippy/pull/8547) * [`match_single_binding`], [`match_same_arms`], [`match_as_ref`], [`match_bool`]: No longer lint `match` expressions with `cfg`ed arms [#8443](https://github.com/rust-lang/rust-clippy/pull/8443) * [`single_component_path_imports`]: No longer lint on macros [#8537](https://github.com/rust-lang/rust-clippy/pull/8537) * [`ptr_arg`]: Allow `&mut` arguments for `Cow<_>` [#8552](https://github.com/rust-lang/rust-clippy/pull/8552) * [`needless_borrow`]: No longer lints for method calls [#8441](https://github.com/rust-lang/rust-clippy/pull/8441) * [`match_same_arms`]: Now ensures that interposing arm patterns don't overlap [#8232](https://github.com/rust-lang/rust-clippy/pull/8232) * [`default_trait_access`]: Now allows `Default::default` in update expressions [#8433](https://github.com/rust-lang/rust-clippy/pull/8433) ### Suggestion Fixes/Improvements * [`redundant_slicing`]: Fixed suggestion for a method calls [#8218](https://github.com/rust-lang/rust-clippy/pull/8218) * [`map_flatten`]: Long suggestions will now be split up into two help messages [#8520](https://github.com/rust-lang/rust-clippy/pull/8520) * [`unnecessary_lazy_evaluations`]: Now shows suggestions for longer code snippets [#8543](https://github.com/rust-lang/rust-clippy/pull/8543) * [`unnecessary_sort_by`]: Now suggests `Reverse` including the path [#8462](https://github.com/rust-lang/rust-clippy/pull/8462) * [`search_is_some`]: More suggestions are now `MachineApplicable` [#8536](https://github.com/rust-lang/rust-clippy/pull/8536) ### Documentation Improvements * [`new_without_default`]: Document `pub` requirement for the struct and fields [#8429](https://github.com/rust-lang/rust-clippy/pull/8429) ## Rust 1.60 Released 2022-04-07 [View all 73 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2021-12-31T17%3A53%3A37Z..2022-02-10T17%3A31%3A37Z+base%3Amaster) ### New Lints * [`single_char_lifetime_names`] [#8236](https://github.com/rust-lang/rust-clippy/pull/8236) * [`iter_overeager_cloned`] [#8203](https://github.com/rust-lang/rust-clippy/pull/8203) * [`transmute_undefined_repr`] [#8398](https://github.com/rust-lang/rust-clippy/pull/8398) * [`default_union_representation`] [#8289](https://github.com/rust-lang/rust-clippy/pull/8289) * [`manual_bits`] [#8213](https://github.com/rust-lang/rust-clippy/pull/8213) * [`borrow_as_ptr`] [#8210](https://github.com/rust-lang/rust-clippy/pull/8210) ### Moves and Deprecations * Moved [`disallowed_methods`] and [`disallowed_types`] to `style` (now warn-by-default) [#8261](https://github.com/rust-lang/rust-clippy/pull/8261) * Rename `ref_in_deref` to [`needless_borrow`] [#8217](https://github.com/rust-lang/rust-clippy/pull/8217) * Moved [`mutex_atomic`] to `nursery` (now allow-by-default) [#8260](https://github.com/rust-lang/rust-clippy/pull/8260) ### Enhancements * [`ptr_arg`]: Now takes the argument usage into account and lints for mutable references [#8271](https://github.com/rust-lang/rust-clippy/pull/8271) * [`unused_io_amount`]: Now supports async read and write traits [#8179](https://github.com/rust-lang/rust-clippy/pull/8179) * [`while_let_on_iterator`]: Improved detection to catch more cases [#8221](https://github.com/rust-lang/rust-clippy/pull/8221) * [`trait_duplication_in_bounds`]: Now covers trait functions with `Self` bounds [#8252](https://github.com/rust-lang/rust-clippy/pull/8252) * [`unwrap_used`]: Now works for `.get(i).unwrap()` and `.get_mut(i).unwrap()` [#8372](https://github.com/rust-lang/rust-clippy/pull/8372) * [`map_clone`]: The suggestion takes `msrv` into account [#8280](https://github.com/rust-lang/rust-clippy/pull/8280) * [`manual_bits`] and [`borrow_as_ptr`]: Now track the `clippy::msrv` attribute [#8280](https://github.com/rust-lang/rust-clippy/pull/8280) * [`disallowed_methods`]: Now works for methods on primitive types [#8112](https://github.com/rust-lang/rust-clippy/pull/8112) * [`not_unsafe_ptr_arg_deref`]: Now works for type aliases [#8273](https://github.com/rust-lang/rust-clippy/pull/8273) * [`needless_question_mark`]: Now works for async functions [#8311](https://github.com/rust-lang/rust-clippy/pull/8311) * [`iter_not_returning_iterator`]: Now handles type projections [#8228](https://github.com/rust-lang/rust-clippy/pull/8228) * [`wrong_self_convention`]: Now detects wrong `self` references in more cases [#8208](https://github.com/rust-lang/rust-clippy/pull/8208) * [`single_match`]: Now works for `match` statements with tuples [#8322](https://github.com/rust-lang/rust-clippy/pull/8322) ### False Positive Fixes * [`erasing_op`]: No longer triggers if the output type changes [#8204](https://github.com/rust-lang/rust-clippy/pull/8204) * [`if_same_then_else`]: No longer triggers for `if let` statements [#8297](https://github.com/rust-lang/rust-clippy/pull/8297) * [`manual_memcpy`]: No longer lints on `VecDeque` [#8226](https://github.com/rust-lang/rust-clippy/pull/8226) * [`trait_duplication_in_bounds`]: Now takes path segments into account [#8315](https://github.com/rust-lang/rust-clippy/pull/8315) * [`deref_addrof`]: No longer lints when the dereference or borrow occurs in different a context [#8268](https://github.com/rust-lang/rust-clippy/pull/8268) * [`type_repetition_in_bounds`]: Now checks for full equality to prevent false positives [#8224](https://github.com/rust-lang/rust-clippy/pull/8224) * [`ptr_arg`]: No longer lint for mutable references in traits [#8369](https://github.com/rust-lang/rust-clippy/pull/8369) * [`implicit_clone`]: No longer lints for double references [#8231](https://github.com/rust-lang/rust-clippy/pull/8231) * [`needless_lifetimes`]: No longer lints lifetimes for explicit `self` types [#8278](https://github.com/rust-lang/rust-clippy/pull/8278) * [`op_ref`]: No longer lints in `BinOp` impl if that can cause recursion [#8298](https://github.com/rust-lang/rust-clippy/pull/8298) * [`enum_variant_names`]: No longer triggers for empty variant names [#8329](https://github.com/rust-lang/rust-clippy/pull/8329) * [`redundant_closure`]: No longer lints for `Arc` or `Rc` [#8193](https://github.com/rust-lang/rust-clippy/pull/8193) * [`iter_not_returning_iterator`]: No longer lints on trait implementations but therefore on trait definitions [#8228](https://github.com/rust-lang/rust-clippy/pull/8228) * [`single_match`]: No longer lints on exhaustive enum patterns without a wildcard [#8322](https://github.com/rust-lang/rust-clippy/pull/8322) * [`manual_swap`]: No longer lints on cases that involve automatic dereferences [#8220](https://github.com/rust-lang/rust-clippy/pull/8220) * [`useless_format`]: Now works for implicit named arguments [#8295](https://github.com/rust-lang/rust-clippy/pull/8295) ### Suggestion Fixes/Improvements * [`needless_borrow`]: Prevent mutable borrows being moved and suggest removing the borrow on method calls [#8217](https://github.com/rust-lang/rust-clippy/pull/8217) * [`chars_next_cmp`]: Correctly escapes the suggestion [#8376](https://github.com/rust-lang/rust-clippy/pull/8376) * [`explicit_write`]: Add suggestions for `write!`s with format arguments [#8365](https://github.com/rust-lang/rust-clippy/pull/8365) * [`manual_memcpy`]: Suggests `copy_from_slice` when applicable [#8226](https://github.com/rust-lang/rust-clippy/pull/8226) * [`or_fun_call`]: Improved suggestion display for long arguments [#8292](https://github.com/rust-lang/rust-clippy/pull/8292) * [`unnecessary_cast`]: Now correctly includes the sign [#8350](https://github.com/rust-lang/rust-clippy/pull/8350) * [`cmp_owned`]: No longer flips the comparison order [#8299](https://github.com/rust-lang/rust-clippy/pull/8299) * [`explicit_counter_loop`]: Now correctly suggests `iter()` on references [#8382](https://github.com/rust-lang/rust-clippy/pull/8382) ### ICE Fixes * [`manual_split_once`] [#8250](https://github.com/rust-lang/rust-clippy/pull/8250) ### Documentation Improvements * [`map_flatten`]: Add documentation for the `Option` type [#8354](https://github.com/rust-lang/rust-clippy/pull/8354) * Document that Clippy's driver might use a different code generation than rustc [#8037](https://github.com/rust-lang/rust-clippy/pull/8037) * Clippy's lint list will now automatically focus the search box [#8343](https://github.com/rust-lang/rust-clippy/pull/8343) ### Others * Clippy now warns if we find multiple Clippy config files exist [#8326](https://github.com/rust-lang/rust-clippy/pull/8326) ## Rust 1.59 Released 2022-02-24 [View all 94 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2021-11-04T12%3A40%3A18Z..2021-12-30T13%3A36%3A20Z+base%3Amaster) ### New Lints * [`index_refutable_slice`] [#7643](https://github.com/rust-lang/rust-clippy/pull/7643) * [`needless_splitn`] [#7896](https://github.com/rust-lang/rust-clippy/pull/7896) * [`unnecessary_to_owned`] [#7978](https://github.com/rust-lang/rust-clippy/pull/7978) * [`needless_late_init`] [#7995](https://github.com/rust-lang/rust-clippy/pull/7995) * [`octal_escapes`] [#8007](https://github.com/rust-lang/rust-clippy/pull/8007) * [`return_self_not_must_use`] [#8071](https://github.com/rust-lang/rust-clippy/pull/8071) * [`init_numbered_fields`] [#8170](https://github.com/rust-lang/rust-clippy/pull/8170) ### Moves and Deprecations * Move `if_then_panic` to `pedantic` and rename to [`manual_assert`] (now allow-by-default) [#7810](https://github.com/rust-lang/rust-clippy/pull/7810) * Rename `disallow_type` to [`disallowed_types`] and `disallowed_method` to [`disallowed_methods`] [#7984](https://github.com/rust-lang/rust-clippy/pull/7984) * Move [`map_flatten`] to `complexity` (now warn-by-default) [#8054](https://github.com/rust-lang/rust-clippy/pull/8054) ### Enhancements * [`match_overlapping_arm`]: Fix false negative where after included ranges, overlapping ranges weren't linted anymore [#7909](https://github.com/rust-lang/rust-clippy/pull/7909) * [`deprecated_cfg_attr`]: Now takes the specified MSRV into account [#7944](https://github.com/rust-lang/rust-clippy/pull/7944) * [`cast_lossless`]: Now also lints for `bool` to integer casts [#7948](https://github.com/rust-lang/rust-clippy/pull/7948) * [`let_underscore_lock`]: Also emit lints for the `parking_lot` crate [#7957](https://github.com/rust-lang/rust-clippy/pull/7957) * [`needless_borrow`] [#7977](https://github.com/rust-lang/rust-clippy/pull/7977) * Lint when a borrow is auto-dereffed more than once * Lint in the trailing expression of a block for a match arm * [`strlen_on_c_strings`] [8001](https://github.com/rust-lang/rust-clippy/pull/8001) * Lint when used without a fully-qualified path * Suggest removing the surrounding unsafe block when possible * [`non_ascii_literal`]: Now also lints on `char`s, not just `string`s [#8034](https://github.com/rust-lang/rust-clippy/pull/8034) * [`single_char_pattern`]: Now also lints on `split_inclusive`, `split_once`, `rsplit_once`, `replace`, and `replacen` [#8077](https://github.com/rust-lang/rust-clippy/pull/8077) * [`unwrap_or_else_default`]: Now also lints on `std` constructors like `Vec::new`, `HashSet::new`, and `HashMap::new` [#8163](https://github.com/rust-lang/rust-clippy/pull/8163) * [`shadow_reuse`]: Now also lints on shadowed `if let` bindings, instead of [`shadow_unrelated`] [#8165](https://github.com/rust-lang/rust-clippy/pull/8165) ### False Positive Fixes * [`or_fun_call`], [`unnecessary_lazy_evaluations`]: Improve heuristics, so that cheap functions (e.g. calling `.len()` on a `Vec`) won't get linted anymore [#7639](https://github.com/rust-lang/rust-clippy/pull/7639) * [`manual_split_once`]: No longer suggests code changing the original behavior [#7896](https://github.com/rust-lang/rust-clippy/pull/7896) * Don't show [`no_effect`] or [`unnecessary_operation`] warning for unit struct implementing `FnOnce` [#7898](https://github.com/rust-lang/rust-clippy/pull/7898) * [`semicolon_if_nothing_returned`]: Fixed a bug, where the lint wrongly triggered on `let-else` statements [#7955](https://github.com/rust-lang/rust-clippy/pull/7955) * [`if_then_some_else_none`]: No longer lints if there is an early return [#7980](https://github.com/rust-lang/rust-clippy/pull/7980) * [`needless_collect`]: No longer suggests removal of `collect` when removal would create code requiring mutably borrowing a value multiple times [#7982](https://github.com/rust-lang/rust-clippy/pull/7982) * [`shadow_same`]: Fix false positive for `async` function's params [#7997](https://github.com/rust-lang/rust-clippy/pull/7997) * [`suboptimal_flops`]: No longer triggers in constant functions [#8009](https://github.com/rust-lang/rust-clippy/pull/8009) * [`type_complexity`]: No longer lints on associated types in traits [#8030](https://github.com/rust-lang/rust-clippy/pull/8030) * [`question_mark`]: No longer lints if returned object is not local [#8080](https://github.com/rust-lang/rust-clippy/pull/8080) * [`option_if_let_else`]: No longer lint on complex sub-patterns [#8086](https://github.com/rust-lang/rust-clippy/pull/8086) * [`blocks_in_if_conditions`]: No longer lints on empty closures [#8100](https://github.com/rust-lang/rust-clippy/pull/8100) * [`enum_variant_names`]: No longer lint when first prefix is only a substring of a camel-case word [#8127](https://github.com/rust-lang/rust-clippy/pull/8127) * [`identity_op`]: Only lint on integral operands [#8183](https://github.com/rust-lang/rust-clippy/pull/8183) ### Suggestion Fixes/Improvements * [`search_is_some`]: Fix suggestion for `any()` not taking item by reference [#7463](https://github.com/rust-lang/rust-clippy/pull/7463) * [`almost_swapped`]: Now detects if there is a `no_std` or `no_core` attribute and adapts the suggestion accordingly [#7877](https://github.com/rust-lang/rust-clippy/pull/7877) * [`redundant_pattern_matching`]: Fix suggestion for deref expressions [#7949](https://github.com/rust-lang/rust-clippy/pull/7949) * [`explicit_counter_loop`]: Now also produces a suggestion for non-`usize` types [#7950](https://github.com/rust-lang/rust-clippy/pull/7950) * [`manual_map`]: Fix suggestion when used with unsafe functions and blocks [#7968](https://github.com/rust-lang/rust-clippy/pull/7968) * [`option_map_or_none`]: Suggest `map` over `and_then` when possible [#7971](https://github.com/rust-lang/rust-clippy/pull/7971) * [`option_if_let_else`]: No longer expands macros in the suggestion [#7974](https://github.com/rust-lang/rust-clippy/pull/7974) * [`iter_cloned_collect`]: Suggest `copied` over `cloned` when possible [#8006](https://github.com/rust-lang/rust-clippy/pull/8006) * [`doc_markdown`]: No longer uses inline hints to improve readability of suggestion [#8011](https://github.com/rust-lang/rust-clippy/pull/8011) * [`needless_question_mark`]: Now better explains the suggestion [#8028](https://github.com/rust-lang/rust-clippy/pull/8028) * [`single_char_pattern`]: Escape backslash `\` in suggestion [#8067](https://github.com/rust-lang/rust-clippy/pull/8067) * [`needless_bool`]: Suggest `a != b` over `!(a == b)` [#8117](https://github.com/rust-lang/rust-clippy/pull/8117) * [`iter_skip_next`]: Suggest to add a `mut` if it is necessary in order to apply this lints suggestion [#8133](https://github.com/rust-lang/rust-clippy/pull/8133) * [`neg_multiply`]: Now produces a suggestion [#8144](https://github.com/rust-lang/rust-clippy/pull/8144) * [`needless_return`]: Now suggests the unit type `()` over an empty block `{}` in match arms [#8185](https://github.com/rust-lang/rust-clippy/pull/8185) * [`suboptimal_flops`]: Now gives a syntactically correct suggestion for `to_radians` and `to_degrees` [#8187](https://github.com/rust-lang/rust-clippy/pull/8187) ### ICE Fixes * [`undocumented_unsafe_blocks`] [#7945](https://github.com/rust-lang/rust-clippy/pull/7945) [#7988](https://github.com/rust-lang/rust-clippy/pull/7988) * [`unnecessary_cast`] [#8167](https://github.com/rust-lang/rust-clippy/pull/8167) ### Documentation Improvements * [`print_stdout`], [`print_stderr`], [`dbg_macro`]: Document how the lint level can be changed crate-wide [#8040](https://github.com/rust-lang/rust-clippy/pull/8040) * Added a note to the `README` that config changes don't apply to already compiled code [#8175](https://github.com/rust-lang/rust-clippy/pull/8175) ### Others * [Clippy's lint list](https://rust-lang.github.io/rust-clippy/master/index.html) now displays the version a lint was added. :tada: [#7813](https://github.com/rust-lang/rust-clippy/pull/7813) * New and improved issue templates [#8032](https://github.com/rust-lang/rust-clippy/pull/8032) * _Dev:_ Add `cargo dev lint` command, to run your modified Clippy version on a file [#7917](https://github.com/rust-lang/rust-clippy/pull/7917) ## Rust 1.58 Released 2022-01-13 [View all 68 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2021-10-07T09%3A49%3A18Z..2021-11-04T12%3A20%3A12Z+base%3Amaster) ### Rust 1.58.1 * Move [`non_send_fields_in_send_ty`] to `nursery` (now allow-by-default) [#8075](https://github.com/rust-lang/rust-clippy/pull/8075) * [`useless_format`]: Handle implicit named arguments [#8295](https://github.com/rust-lang/rust-clippy/pull/8295) ### New lints * [`transmute_num_to_bytes`] [#7805](https://github.com/rust-lang/rust-clippy/pull/7805) * [`match_str_case_mismatch`] [#7806](https://github.com/rust-lang/rust-clippy/pull/7806) * [`format_in_format_args`], [`to_string_in_format_args`] [#7743](https://github.com/rust-lang/rust-clippy/pull/7743) * [`uninit_vec`] [#7682](https://github.com/rust-lang/rust-clippy/pull/7682) * [`fn_to_numeric_cast_any`] [#7705](https://github.com/rust-lang/rust-clippy/pull/7705) * [`undocumented_unsafe_blocks`] [#7748](https://github.com/rust-lang/rust-clippy/pull/7748) * [`trailing_empty_array`] [#7838](https://github.com/rust-lang/rust-clippy/pull/7838) * [`string_slice`] [#7878](https://github.com/rust-lang/rust-clippy/pull/7878) ### Moves or deprecations of lints * Move [`non_send_fields_in_send_ty`] to `suspicious` [#7874](https://github.com/rust-lang/rust-clippy/pull/7874) * Move [`non_ascii_literal`] to `restriction` [#7907](https://github.com/rust-lang/rust-clippy/pull/7907) ### Changes that expand what code existing lints cover * [`question_mark`] now covers `Result` [#7840](https://github.com/rust-lang/rust-clippy/pull/7840) * Make [`useless_format`] recognize bare `format!("")` [#7801](https://github.com/rust-lang/rust-clippy/pull/7801) * Lint on underscored variables with no side effects in [`no_effect`] [#7775](https://github.com/rust-lang/rust-clippy/pull/7775) * Expand [`match_ref_pats`] to check for multiple reference patterns [#7800](https://github.com/rust-lang/rust-clippy/pull/7800) ### False positive fixes * Fix false positive of [`implicit_saturating_sub`] with `else` clause [#7832](https://github.com/rust-lang/rust-clippy/pull/7832) * Fix [`question_mark`] when there is call in conditional predicate [#7860](https://github.com/rust-lang/rust-clippy/pull/7860) * [`mut_mut`] no longer lints when type is defined in external macros [#7795](https://github.com/rust-lang/rust-clippy/pull/7795) * Avoid [`eq_op`] in test functions [#7811](https://github.com/rust-lang/rust-clippy/pull/7811) * [`cast_possible_truncation`] no longer lints when cast is coming from `signum` method call [#7850](https://github.com/rust-lang/rust-clippy/pull/7850) * [`match_str_case_mismatch`] no longer lints on uncased characters [#7865](https://github.com/rust-lang/rust-clippy/pull/7865) * [`ptr_arg`] no longer lints references to type aliases [#7890](https://github.com/rust-lang/rust-clippy/pull/7890) * [`missing_safety_doc`] now also accepts "implementation safety" headers [#7856](https://github.com/rust-lang/rust-clippy/pull/7856) * [`missing_safety_doc`] no longer lints if any parent has `#[doc(hidden)]` attribute [#7849](https://github.com/rust-lang/rust-clippy/pull/7849) * [`if_not_else`] now ignores else-if statements [#7895](https://github.com/rust-lang/rust-clippy/pull/7895) * Avoid linting [`cast_possible_truncation`] on bit-reducing operations [#7819](https://github.com/rust-lang/rust-clippy/pull/7819) * Avoid linting [`field_reassign_with_default`] when `Drop` and `Copy` are involved [#7794](https://github.com/rust-lang/rust-clippy/pull/7794) * [`unnecessary_sort_by`] now checks if argument implements `Ord` trait [#7824](https://github.com/rust-lang/rust-clippy/pull/7824) * Fix false positive in [`match_overlapping_arm`] [#7847](https://github.com/rust-lang/rust-clippy/pull/7847) * Prevent [`needless_lifetimes`] false positive in `async` function definition [#7901](https://github.com/rust-lang/rust-clippy/pull/7901) ### Suggestion fixes/improvements * Keep an initial `::` when [`doc_markdown`] suggests to use ticks [#7916](https://github.com/rust-lang/rust-clippy/pull/7916) * Add a machine applicable suggestion for the [`doc_markdown`] missing backticks lint [#7904](https://github.com/rust-lang/rust-clippy/pull/7904) * [`equatable_if_let`] no longer expands macros in the suggestion [#7788](https://github.com/rust-lang/rust-clippy/pull/7788) * Make [`shadow_reuse`] suggestion less verbose [#7782](https://github.com/rust-lang/rust-clippy/pull/7782) ### ICE fixes * Fix ICE in [`enum_variant_names`] [#7873](https://github.com/rust-lang/rust-clippy/pull/7873) * Fix ICE in [`undocumented_unsafe_blocks`] [#7891](https://github.com/rust-lang/rust-clippy/pull/7891) ### Documentation improvements * Fixed naive doc formatting for `#[must_use]` lints ([`must_use_unit`], [`double_must_use`], [`must_use_candidate`], [`let_underscore_must_use`]) [#7827](https://github.com/rust-lang/rust-clippy/pull/7827) * Fix typo in example for [`match_result_ok`] [#7815](https://github.com/rust-lang/rust-clippy/pull/7815) ### Others * Allow giving reasons for [`disallowed_types`] [#7791](https://github.com/rust-lang/rust-clippy/pull/7791) * Fix [`manual_assert`] and [`match_wild_err_arm`] for `#![no_std]` and Rust 2021. [#7851](https://github.com/rust-lang/rust-clippy/pull/7851) * Fix regression in [`semicolon_if_nothing_returned`] on macros containing while loops [#7789](https://github.com/rust-lang/rust-clippy/pull/7789) * Added a new configuration `literal-suffix-style` to enforce a certain style writing [`unseparated_literal_suffix`] [#7726](https://github.com/rust-lang/rust-clippy/pull/7726) ## Rust 1.57 Released 2021-12-02 [View all 148 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2021-08-12T20%3A36%3A04Z..2021-11-03T17%3A57%3A59Z+base%3Amaster) ### New Lints * [`negative_feature_names`] [#7539](https://github.com/rust-lang/rust-clippy/pull/7539) * [`redundant_feature_names`] [#7539](https://github.com/rust-lang/rust-clippy/pull/7539) * [`mod_module_files`] [#7543](https://github.com/rust-lang/rust-clippy/pull/7543) * [`self_named_module_files`] [#7543](https://github.com/rust-lang/rust-clippy/pull/7543) * [`manual_split_once`] [#7565](https://github.com/rust-lang/rust-clippy/pull/7565) * [`derivable_impls`] [#7570](https://github.com/rust-lang/rust-clippy/pull/7570) * [`needless_option_as_deref`] [#7596](https://github.com/rust-lang/rust-clippy/pull/7596) * [`iter_not_returning_iterator`] [#7610](https://github.com/rust-lang/rust-clippy/pull/7610) * [`same_name_method`] [#7653](https://github.com/rust-lang/rust-clippy/pull/7653) * [`manual_assert`] [#7669](https://github.com/rust-lang/rust-clippy/pull/7669) * [`non_send_fields_in_send_ty`] [#7709](https://github.com/rust-lang/rust-clippy/pull/7709) * [`equatable_if_let`] [#7762](https://github.com/rust-lang/rust-clippy/pull/7762) ### Moves and Deprecations * Move [`shadow_unrelated`] to `restriction` [#7338](https://github.com/rust-lang/rust-clippy/pull/7338) * Move [`option_if_let_else`] to `nursery` [#7568](https://github.com/rust-lang/rust-clippy/pull/7568) * Move [`branches_sharing_code`] to `nursery` [#7595](https://github.com/rust-lang/rust-clippy/pull/7595) * Rename `if_let_some_result` to [`match_result_ok`] which now also handles `while let` cases [#7608](https://github.com/rust-lang/rust-clippy/pull/7608) * Move [`many_single_char_names`] to `pedantic` [#7671](https://github.com/rust-lang/rust-clippy/pull/7671) * Move [`float_cmp`] to `pedantic` [#7692](https://github.com/rust-lang/rust-clippy/pull/7692) * Rename `box_vec` to [`box_collection`] and lint on more general cases [#7693](https://github.com/rust-lang/rust-clippy/pull/7693) * Uplift `invalid_atomic_ordering` to rustc [rust-lang/rust#84039](https://github.com/rust-lang/rust/pull/84039) ### Enhancements * Rewrite the `shadow*` lints, so that they find a lot more shadows and are not limited to certain patterns [#7338](https://github.com/rust-lang/rust-clippy/pull/7338) * The `avoid-breaking-exported-api` configuration now also works for [`box_collection`], [`redundant_allocation`], [`rc_buffer`], [`vec_box`], [`option_option`], [`linkedlist`], [`rc_mutex`] [#7560](https://github.com/rust-lang/rust-clippy/pull/7560) * [`unnecessary_unwrap`]: Now also checks for `expect`s [#7584](https://github.com/rust-lang/rust-clippy/pull/7584) * [`disallowed_methods`]: Allow adding a reason that will be displayed with the lint message [#7621](https://github.com/rust-lang/rust-clippy/pull/7621) * [`approx_constant`]: Now checks the MSRV for `LOG10_2` and `LOG2_10` [#7629](https://github.com/rust-lang/rust-clippy/pull/7629) * [`approx_constant`]: Add `TAU` [#7642](https://github.com/rust-lang/rust-clippy/pull/7642) * [`needless_borrow`]: Now also lints on needless mutable borrows [#7657](https://github.com/rust-lang/rust-clippy/pull/7657) * [`missing_safety_doc`]: Now also lints on unsafe traits [#7734](https://github.com/rust-lang/rust-clippy/pull/7734) ### False Positive Fixes * [`manual_map`]: No longer lints when the option is borrowed in the match and also consumed in the arm [#7531](https://github.com/rust-lang/rust-clippy/pull/7531) * [`filter_next`]: No longer lints if `filter` method is not the `Iterator::filter` method [#7562](https://github.com/rust-lang/rust-clippy/pull/7562) * [`manual_flatten`]: No longer lints if expression is used after `if let` [#7566](https://github.com/rust-lang/rust-clippy/pull/7566) * [`option_if_let_else`]: Multiple fixes [#7573](https://github.com/rust-lang/rust-clippy/pull/7573) * `break` and `continue` statements local to the would-be closure are allowed * Don't lint in const contexts * Don't lint when yield expressions are used * Don't lint when the captures made by the would-be closure conflict with the other branch * Don't lint when a field of a local is used when the type could be potentially moved from * In some cases, don't lint when scrutinee expression conflicts with the captures of the would-be closure * [`redundant_allocation`]: No longer lints on `Box>` which replaces wide pointers with thin pointers [#7592](https://github.com/rust-lang/rust-clippy/pull/7592) * [`bool_assert_comparison`]: No longer lints on types that do not implement the `Not` trait with `Output = bool` [#7605](https://github.com/rust-lang/rust-clippy/pull/7605) * [`mut_range_bound`]: No longer lints on range bound mutations, that are immediately followed by a `break;` [#7607](https://github.com/rust-lang/rust-clippy/pull/7607) * [`mutable_key_type`]: Improve accuracy and document remaining false positives and false negatives [#7640](https://github.com/rust-lang/rust-clippy/pull/7640) * [`redundant_closure`]: Rewrite the lint to fix various false positives and false negatives [#7661](https://github.com/rust-lang/rust-clippy/pull/7661) * [`large_enum_variant`]: No longer wrongly identifies the second largest variant [#7677](https://github.com/rust-lang/rust-clippy/pull/7677) * [`needless_return`]: No longer lints on let-else expressions [#7685](https://github.com/rust-lang/rust-clippy/pull/7685) * [`suspicious_else_formatting`]: No longer lints in proc-macros [#7707](https://github.com/rust-lang/rust-clippy/pull/7707) * [`excessive_precision`]: No longer lints when in some cases the float was already written in the shortest form [#7722](https://github.com/rust-lang/rust-clippy/pull/7722) * [`doc_markdown`]: No longer lints on intra-doc links [#7772](https://github.com/rust-lang/rust-clippy/pull/7772) ### Suggestion Fixes/Improvements * [`unnecessary_operation`]: Recommend using an `assert!` instead of using a function call in an indexing operation [#7453](https://github.com/rust-lang/rust-clippy/pull/7453) * [`manual_split_once`]: Produce semantically equivalent suggestion when `rsplitn` is used [#7663](https://github.com/rust-lang/rust-clippy/pull/7663) * [`while_let_on_iterator`]: Produce correct suggestion when using `&mut` [#7690](https://github.com/rust-lang/rust-clippy/pull/7690) * [`manual_assert`]: No better handles complex conditions [#7741](https://github.com/rust-lang/rust-clippy/pull/7741) * Correctly handle signs in exponents in numeric literals lints [#7747](https://github.com/rust-lang/rust-clippy/pull/7747) * [`suspicious_map`]: Now also suggests to use `inspect` as an alternative [#7770](https://github.com/rust-lang/rust-clippy/pull/7770) * Drop exponent from suggestion if it is 0 in numeric literals lints [#7774](https://github.com/rust-lang/rust-clippy/pull/7774) ### ICE Fixes * [`implicit_hasher`] [#7761](https://github.com/rust-lang/rust-clippy/pull/7761) ### Others * Clippy now uses the 2021 [Edition!](https://www.youtube.com/watch?v=q0aNduqb2Ro) [#7664](https://github.com/rust-lang/rust-clippy/pull/7664) ## Rust 1.56 Released 2021-10-21 [View all 38 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2021-07-19T14%3A33%3A33Z..2021-08-12T09%3A28%3A38Z+base%3Amaster) ### New Lints * [`unwrap_or_else_default`] [#7516](https://github.com/rust-lang/rust-clippy/pull/7516) ### Enhancements * [`needless_continue`]: Now also lints in `loop { continue; }` case [#7477](https://github.com/rust-lang/rust-clippy/pull/7477) * [`disallowed_types`]: Now also primitive types can be disallowed [#7488](https://github.com/rust-lang/rust-clippy/pull/7488) * [`manual_swap`]: Now also lints on xor swaps [#7506](https://github.com/rust-lang/rust-clippy/pull/7506) * [`map_flatten`]: Now also lints on the `Result` type [#7522](https://github.com/rust-lang/rust-clippy/pull/7522) * [`no_effect`]: Now also lints on inclusive ranges [#7556](https://github.com/rust-lang/rust-clippy/pull/7556) ### False Positive Fixes * [`nonstandard_macro_braces`]: No longer lints on similar named nested macros [#7478](https://github.com/rust-lang/rust-clippy/pull/7478) * [`too_many_lines`]: No longer lints in closures to avoid duplicated diagnostics [#7534](https://github.com/rust-lang/rust-clippy/pull/7534) * [`similar_names`]: No longer complains about `iter` and `item` being too similar [#7546](https://github.com/rust-lang/rust-clippy/pull/7546) ### Suggestion Fixes/Improvements * [`similar_names`]: No longer suggests to insert or add an underscore as a fix [#7221](https://github.com/rust-lang/rust-clippy/pull/7221) * [`new_without_default`]: No longer shows the full qualified type path when suggesting adding a `Default` implementation [#7493](https://github.com/rust-lang/rust-clippy/pull/7493) * [`while_let_on_iterator`]: Now suggests re-borrowing mutable references [#7520](https://github.com/rust-lang/rust-clippy/pull/7520) * [`extend_with_drain`]: Improve code suggestion for mutable and immutable references [#7533](https://github.com/rust-lang/rust-clippy/pull/7533) * [`trivially_copy_pass_by_ref`]: Now properly handles `Self` type [#7535](https://github.com/rust-lang/rust-clippy/pull/7535) * [`never_loop`]: Now suggests using `if let` instead of a `for` loop when applicable [#7541](https://github.com/rust-lang/rust-clippy/pull/7541) ### Documentation Improvements * Clippy now uses a lint to generate its lint documentation. [Lints all the way down](https://en.wikipedia.org/wiki/Turtles_all_the_way_down). [#7502](https://github.com/rust-lang/rust-clippy/pull/7502) * Reworked Clippy's website: [#7172](https://github.com/rust-lang/rust-clippy/issues/7172) [#7279](https://github.com/rust-lang/rust-clippy/pull/7279) * Added applicability information about lints * Added a link to jump into the implementation * Improved loading times * Adapted some styling * `cargo clippy --help` now also explains the `--fix` and `--no-deps` flag [#7492](https://github.com/rust-lang/rust-clippy/pull/7492) * [`unnested_or_patterns`]: Removed `or_patterns` feature gate in the code example [#7507](https://github.com/rust-lang/rust-clippy/pull/7507) ## Rust 1.55 Released 2021-09-09 [View all 83 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2021-06-03T07%3A23%3A59Z..2021-07-29T11%3A47%3A32Z+base%3Amaster) ### Important Changes * Stabilized `cargo clippy --fix` :tada: [#7405](https://github.com/rust-lang/rust-clippy/pull/7405) ### New Lints * [`rc_mutex`] [#7316](https://github.com/rust-lang/rust-clippy/pull/7316) * [`nonstandard_macro_braces`] [#7299](https://github.com/rust-lang/rust-clippy/pull/7299) * [`strlen_on_c_strings`] [#7243](https://github.com/rust-lang/rust-clippy/pull/7243) * [`self_named_constructors`] [#7403](https://github.com/rust-lang/rust-clippy/pull/7403) * [`disallowed_script_idents`] [#7400](https://github.com/rust-lang/rust-clippy/pull/7400) * [`disallowed_types`] [#7315](https://github.com/rust-lang/rust-clippy/pull/7315) * [`missing_enforced_import_renames`] [#7300](https://github.com/rust-lang/rust-clippy/pull/7300) * [`extend_with_drain`] [#7270](https://github.com/rust-lang/rust-clippy/pull/7270) ### Moves and Deprecations * Moved [`from_iter_instead_of_collect`] to `pedantic` [#7375](https://github.com/rust-lang/rust-clippy/pull/7375) * Added `suspicious` as a new lint group for *code that is most likely wrong or useless* [#7350](https://github.com/rust-lang/rust-clippy/pull/7350) * Moved [`blanket_clippy_restriction_lints`] to `suspicious` * Moved [`empty_loop`] to `suspicious` * Moved [`eval_order_dependence`] to `suspicious` * Moved [`float_equality_without_abs`] to `suspicious` * Moved [`for_loops_over_fallibles`] to `suspicious` * Moved [`misrefactored_assign_op`] to `suspicious` * Moved [`mut_range_bound`] to `suspicious` * Moved [`mutable_key_type`] to `suspicious` * Moved [`suspicious_arithmetic_impl`] to `suspicious` * Moved [`suspicious_assignment_formatting`] to `suspicious` * Moved [`suspicious_else_formatting`] to `suspicious` * Moved [`suspicious_map`] to `suspicious` * Moved [`suspicious_op_assign_impl`] to `suspicious` * Moved [`suspicious_unary_op_formatting`] to `suspicious` ### Enhancements * [`while_let_on_iterator`]: Now suggests `&mut iter` inside closures [#7262](https://github.com/rust-lang/rust-clippy/pull/7262) * [`doc_markdown`]: * Now detects unbalanced ticks [#7357](https://github.com/rust-lang/rust-clippy/pull/7357) * Add `FreeBSD` to the default configuration as an allowed identifier [#7334](https://github.com/rust-lang/rust-clippy/pull/7334) * [`wildcard_enum_match_arm`], [`match_wildcard_for_single_variants`]: Now allows wildcards for enums with unstable or hidden variants [#7407](https://github.com/rust-lang/rust-clippy/pull/7407) * [`redundant_allocation`]: Now additionally supports the `Arc<>` type [#7308](https://github.com/rust-lang/rust-clippy/pull/7308) * [`disallowed_names`]: Now allows disallowed names in test code [#7379](https://github.com/rust-lang/rust-clippy/pull/7379) * [`redundant_closure`]: Suggests `&mut` for `FnMut` [#7437](https://github.com/rust-lang/rust-clippy/pull/7437) * [`disallowed_methods`], [`disallowed_types`]: The configuration values `disallowed-method` and `disallowed-type` no longer require fully qualified paths [#7345](https://github.com/rust-lang/rust-clippy/pull/7345) * [`zst_offset`]: Fixed lint invocation after it was accidentally suppressed [#7396](https://github.com/rust-lang/rust-clippy/pull/7396) ### False Positive Fixes * [`default_numeric_fallback`]: No longer lints on float literals as function arguments [#7446](https://github.com/rust-lang/rust-clippy/pull/7446) * [`use_self`]: No longer lints on type parameters [#7288](https://github.com/rust-lang/rust-clippy/pull/7288) * [`unimplemented`]: Now ignores the `assert` and `debug_assert` macros [#7439](https://github.com/rust-lang/rust-clippy/pull/7439) * [`branches_sharing_code`]: Now always checks for block expressions [#7462](https://github.com/rust-lang/rust-clippy/pull/7462) * [`field_reassign_with_default`]: No longer triggers in macros [#7160](https://github.com/rust-lang/rust-clippy/pull/7160) * [`redundant_clone`]: No longer lints on required clones for borrowed data [#7346](https://github.com/rust-lang/rust-clippy/pull/7346) * [`default_numeric_fallback`]: No longer triggers in external macros [#7325](https://github.com/rust-lang/rust-clippy/pull/7325) * [`needless_bool`]: No longer lints in macros [#7442](https://github.com/rust-lang/rust-clippy/pull/7442) * [`useless_format`]: No longer triggers when additional text is being appended [#7442](https://github.com/rust-lang/rust-clippy/pull/7442) * [`assertions_on_constants`]: `cfg!(...)` is no longer considered to be a constant [#7319](https://github.com/rust-lang/rust-clippy/pull/7319) ### Suggestion Fixes/Improvements * [`needless_collect`]: Now show correct lint messages for shadowed values [#7289](https://github.com/rust-lang/rust-clippy/pull/7289) * [`wrong_pub_self_convention`]: The deprecated message now suggest the correct configuration value [#7382](https://github.com/rust-lang/rust-clippy/pull/7382) * [`semicolon_if_nothing_returned`]: Allow missing semicolon in blocks with only one expression [#7326](https://github.com/rust-lang/rust-clippy/pull/7326) ### ICE Fixes * [`zero_sized_map_values`] [#7470](https://github.com/rust-lang/rust-clippy/pull/7470) * [`redundant_pattern_matching`] [#7471](https://github.com/rust-lang/rust-clippy/pull/7471) * [`modulo_one`] [#7473](https://github.com/rust-lang/rust-clippy/pull/7473) * [`use_self`] [#7428](https://github.com/rust-lang/rust-clippy/pull/7428) ## Rust 1.54 Released 2021-07-29 [View all 74 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2021-04-27T23%3A51%3A18Z..2021-06-03T06%3A54%3A07Z+base%3Amaster) ### New Lints - [`ref_binding_to_reference`] [#7105](https://github.com/rust-lang/rust-clippy/pull/7105) - [`needless_bitwise_bool`] [#7133](https://github.com/rust-lang/rust-clippy/pull/7133) - [`unused_async`] [#7225](https://github.com/rust-lang/rust-clippy/pull/7225) - [`manual_str_repeat`] [#7265](https://github.com/rust-lang/rust-clippy/pull/7265) - [`suspicious_splitn`] [#7292](https://github.com/rust-lang/rust-clippy/pull/7292) ### Moves and Deprecations - Deprecate `pub_enum_variant_names` and `wrong_pub_self_convention` in favor of the new `avoid-breaking-exported-api` config option (see [Enhancements](#1-54-enhancements)) [#7187](https://github.com/rust-lang/rust-clippy/pull/7187) - Move [`inconsistent_struct_constructor`] to `pedantic` [#7193](https://github.com/rust-lang/rust-clippy/pull/7193) - Move [`needless_borrow`] to `style` (now warn-by-default) [#7254](https://github.com/rust-lang/rust-clippy/pull/7254) - Move [`suspicious_operation_groupings`] to `nursery` [#7266](https://github.com/rust-lang/rust-clippy/pull/7266) - Move [`semicolon_if_nothing_returned`] to `pedantic` [#7268](https://github.com/rust-lang/rust-clippy/pull/7268) ### Enhancements - [`while_let_on_iterator`]: Now also lints in nested loops [#6966](https://github.com/rust-lang/rust-clippy/pull/6966) - [`single_char_pattern`]: Now also lints on `strip_prefix` and `strip_suffix` [#7156](https://github.com/rust-lang/rust-clippy/pull/7156) - [`needless_collect`]: Now also lints on assignments with type annotations [#7163](https://github.com/rust-lang/rust-clippy/pull/7163) - [`if_then_some_else_none`]: Now works with the MSRV config [#7177](https://github.com/rust-lang/rust-clippy/pull/7177) - Add `avoid-breaking-exported-api` config option for the lints [`enum_variant_names`], [`large_types_passed_by_value`], [`trivially_copy_pass_by_ref`], [`unnecessary_wraps`], [`upper_case_acronyms`], and [`wrong_self_convention`]. We recommend to set this configuration option to `false` before a major release (1.0/2.0/...) to clean up the API [#7187](https://github.com/rust-lang/rust-clippy/pull/7187) - [`needless_collect`]: Now lints on even more data structures [#7188](https://github.com/rust-lang/rust-clippy/pull/7188) - [`missing_docs_in_private_items`]: No longer sees `#[ = ""]` like attributes as sufficient documentation [#7281](https://github.com/rust-lang/rust-clippy/pull/7281) - [`needless_collect`], [`short_circuit_statement`], [`unnecessary_operation`]: Now work as expected when used with `allow` [#7282](https://github.com/rust-lang/rust-clippy/pull/7282) ### False Positive Fixes - [`implicit_return`]: Now takes all diverging functions in account to avoid false positives [#6951](https://github.com/rust-lang/rust-clippy/pull/6951) - [`while_let_on_iterator`]: No longer lints when the iterator is a struct field and the struct is used in the loop [#6966](https://github.com/rust-lang/rust-clippy/pull/6966) - [`multiple_inherent_impl`]: No longer lints with generic arguments [#7089](https://github.com/rust-lang/rust-clippy/pull/7089) - [`comparison_chain`]: No longer lints in a `const` context [#7118](https://github.com/rust-lang/rust-clippy/pull/7118) - [`while_immutable_condition`]: Fix false positive where mutation in the loop variable wasn't picked up [#7144](https://github.com/rust-lang/rust-clippy/pull/7144) - [`default_trait_access`]: No longer lints in macros [#7150](https://github.com/rust-lang/rust-clippy/pull/7150) - [`needless_question_mark`]: No longer lints when the inner value is implicitly dereferenced [#7165](https://github.com/rust-lang/rust-clippy/pull/7165) - [`unused_unit`]: No longer lints when multiple macro contexts are involved [#7167](https://github.com/rust-lang/rust-clippy/pull/7167) - [`eval_order_dependence`]: Fix false positive in async context [#7174](https://github.com/rust-lang/rust-clippy/pull/7174) - [`unnecessary_filter_map`]: No longer lints if the `filter_map` changes the type [#7175](https://github.com/rust-lang/rust-clippy/pull/7175) - [`wrong_self_convention`]: No longer lints in trait implementations of non-`Copy` types [#7182](https://github.com/rust-lang/rust-clippy/pull/7182) - [`suboptimal_flops`]: No longer lints on `powi(2)` [#7201](https://github.com/rust-lang/rust-clippy/pull/7201) - [`wrong_self_convention`]: No longer lints if there is no implicit `self` [#7215](https://github.com/rust-lang/rust-clippy/pull/7215) - [`option_if_let_else`]: No longer lints on `else if let` pattern [#7216](https://github.com/rust-lang/rust-clippy/pull/7216) - [`use_self`], [`useless_conversion`]: Fix false positives when generic arguments are involved [#7223](https://github.com/rust-lang/rust-clippy/pull/7223) - [`manual_unwrap_or`]: Fix false positive with deref coercion [#7233](https://github.com/rust-lang/rust-clippy/pull/7233) - [`similar_names`]: No longer lints on `wparam`/`lparam` [#7255](https://github.com/rust-lang/rust-clippy/pull/7255) - [`redundant_closure`]: No longer lints on using the `vec![]` macro in a closure [#7263](https://github.com/rust-lang/rust-clippy/pull/7263) ### Suggestion Fixes/Improvements - [`implicit_return`] [#6951](https://github.com/rust-lang/rust-clippy/pull/6951) - Fix suggestion for async functions - Improve suggestion with macros - Suggest to change `break` to `return` when appropriate - [`while_let_on_iterator`]: Now suggests `&mut iter` when necessary [#6966](https://github.com/rust-lang/rust-clippy/pull/6966) - [`match_single_binding`]: Improve suggestion when match scrutinee has side effects [#7095](https://github.com/rust-lang/rust-clippy/pull/7095) - [`needless_borrow`]: Now suggests to also change usage sites as needed [#7105](https://github.com/rust-lang/rust-clippy/pull/7105) - [`write_with_newline`]: Improve suggestion when only `\n` is written to the buffer [#7183](https://github.com/rust-lang/rust-clippy/pull/7183) - [`from_iter_instead_of_collect`]: The suggestion is now auto applicable also when a `<_ as Trait>::_` is involved [#7264](https://github.com/rust-lang/rust-clippy/pull/7264) - [`not_unsafe_ptr_arg_deref`]: Improved error message [#7294](https://github.com/rust-lang/rust-clippy/pull/7294) ### ICE Fixes - Fix ICE when running Clippy on `libstd` [#7140](https://github.com/rust-lang/rust-clippy/pull/7140) - [`implicit_return`] [#7242](https://github.com/rust-lang/rust-clippy/pull/7242) ## Rust 1.53 Released 2021-06-17 [View all 126 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2021-03-12T22%3A49%3A20Z..2021-04-27T14%3A38%3A20Z+base%3Amaster) ### New Lints * [`option_filter_map`] [#6342](https://github.com/rust-lang/rust-clippy/pull/6342) * [`branches_sharing_code`] [#6463](https://github.com/rust-lang/rust-clippy/pull/6463) * [`needless_for_each`] [#6706](https://github.com/rust-lang/rust-clippy/pull/6706) * [`if_then_some_else_none`] [#6859](https://github.com/rust-lang/rust-clippy/pull/6859) * [`non_octal_unix_permissions`] [#7001](https://github.com/rust-lang/rust-clippy/pull/7001) * [`unnecessary_self_imports`] [#7072](https://github.com/rust-lang/rust-clippy/pull/7072) * [`bool_assert_comparison`] [#7083](https://github.com/rust-lang/rust-clippy/pull/7083) * [`cloned_instead_of_copied`] [#7098](https://github.com/rust-lang/rust-clippy/pull/7098) * [`flat_map_option`] [#7101](https://github.com/rust-lang/rust-clippy/pull/7101) ### Moves and Deprecations * Deprecate [`filter_map`] lint [#7059](https://github.com/rust-lang/rust-clippy/pull/7059) * Move [`transmute_ptr_to_ptr`] to `pedantic` [#7102](https://github.com/rust-lang/rust-clippy/pull/7102) ### Enhancements * [`mem_replace_with_default`]: Also lint on common std constructors [#6820](https://github.com/rust-lang/rust-clippy/pull/6820) * [`wrong_self_convention`]: Also lint on `to_*_mut` methods [#6828](https://github.com/rust-lang/rust-clippy/pull/6828) * [`wildcard_enum_match_arm`], [`match_wildcard_for_single_variants`]: [#6863](https://github.com/rust-lang/rust-clippy/pull/6863) * Attempt to find a common path prefix in suggestion * Don't lint on `Option` and `Result` * Consider `Self` prefix * [`explicit_deref_methods`]: Also lint on chained `deref` calls [#6865](https://github.com/rust-lang/rust-clippy/pull/6865) * [`or_fun_call`]: Also lint on `unsafe` blocks [#6928](https://github.com/rust-lang/rust-clippy/pull/6928) * [`vec_box`], [`linkedlist`], [`option_option`]: Also lint in `const` and `static` items [#6938](https://github.com/rust-lang/rust-clippy/pull/6938) * [`search_is_some`]: Also check for `is_none` [#6942](https://github.com/rust-lang/rust-clippy/pull/6942) * [`string_lit_as_bytes`]: Also lint on `into_bytes` [#6959](https://github.com/rust-lang/rust-clippy/pull/6959) * [`len_without_is_empty`]: Also lint if function signatures of `len` and `is_empty` don't match [#6980](https://github.com/rust-lang/rust-clippy/pull/6980) * [`redundant_pattern_matching`]: Also lint if the pattern is a `&` pattern [#6991](https://github.com/rust-lang/rust-clippy/pull/6991) * [`clone_on_copy`]: Also lint on chained method calls taking `self` by value [#7000](https://github.com/rust-lang/rust-clippy/pull/7000) * [`missing_panics_doc`]: Also lint on `assert_eq!` and `assert_ne!` [#7029](https://github.com/rust-lang/rust-clippy/pull/7029) * [`needless_return`]: Also lint in `async` functions [#7067](https://github.com/rust-lang/rust-clippy/pull/7067) * [`unused_io_amount`]: Also lint on expressions like `_.read().ok()?` [#7100](https://github.com/rust-lang/rust-clippy/pull/7100) * [`iter_cloned_collect`]: Also lint on large arrays, since const-generics are now stable [#7138](https://github.com/rust-lang/rust-clippy/pull/7138) ### False Positive Fixes * [`upper_case_acronyms`]: No longer lints on public items [#6805](https://github.com/rust-lang/rust-clippy/pull/6805) * [`suspicious_map`]: No longer lints when side effects may occur inside the `map` call [#6831](https://github.com/rust-lang/rust-clippy/pull/6831) * [`manual_map`], [`manual_unwrap_or`]: No longer lints in `const` functions [#6917](https://github.com/rust-lang/rust-clippy/pull/6917) * [`wrong_self_convention`]: Now respects `Copy` types [#6924](https://github.com/rust-lang/rust-clippy/pull/6924) * [`needless_question_mark`]: No longer lints if the `?` and the `Some(..)` come from different macro contexts [#6935](https://github.com/rust-lang/rust-clippy/pull/6935) * [`map_entry`]: Better detect if the entry API can be used [#6937](https://github.com/rust-lang/rust-clippy/pull/6937) * [`or_fun_call`]: No longer lints on some `len` function calls [#6950](https://github.com/rust-lang/rust-clippy/pull/6950) * [`new_ret_no_self`]: No longer lints when `Self` is returned with different generic arguments [#6952](https://github.com/rust-lang/rust-clippy/pull/6952) * [`upper_case_acronyms`]: No longer lints on public items [#6981](https://github.com/rust-lang/rust-clippy/pull/6981) * [`explicit_into_iter_loop`]: Only lint when `into_iter` is an implementation of `IntoIterator` [#6982](https://github.com/rust-lang/rust-clippy/pull/6982) * [`expl_impl_clone_on_copy`]: Take generic constraints into account before suggesting to use `derive` instead [#6993](https://github.com/rust-lang/rust-clippy/pull/6993) * [`missing_panics_doc`]: No longer lints when only debug-assertions are used [#6996](https://github.com/rust-lang/rust-clippy/pull/6996) * [`clone_on_copy`]: Only lint when using the `Clone` trait [#7000](https://github.com/rust-lang/rust-clippy/pull/7000) * [`wrong_self_convention`]: No longer lints inside a trait implementation [#7002](https://github.com/rust-lang/rust-clippy/pull/7002) * [`redundant_clone`]: No longer lints when the cloned value is modified while the clone is in use [#7011](https://github.com/rust-lang/rust-clippy/pull/7011) * [`same_item_push`]: No longer lints if the `Vec` is used in the loop body [#7018](https://github.com/rust-lang/rust-clippy/pull/7018) * [`cargo_common_metadata`]: Remove author requirement [#7026](https://github.com/rust-lang/rust-clippy/pull/7026) * [`panic_in_result_fn`]: No longer lints on `debug_assert` family [#7060](https://github.com/rust-lang/rust-clippy/pull/7060) * [`panic`]: No longer wrongfully lints on `debug_assert` with message [#7063](https://github.com/rust-lang/rust-clippy/pull/7063) * [`wrong_self_convention`]: No longer lints in trait implementations where no `self` is involved [#7064](https://github.com/rust-lang/rust-clippy/pull/7064) * [`missing_const_for_fn`]: No longer lints when unstable `const` function is involved [#7076](https://github.com/rust-lang/rust-clippy/pull/7076) * [`suspicious_else_formatting`]: Allow Allman style braces [#7087](https://github.com/rust-lang/rust-clippy/pull/7087) * [`inconsistent_struct_constructor`]: No longer lints in macros [#7097](https://github.com/rust-lang/rust-clippy/pull/7097) * [`single_component_path_imports`]: No longer lints on macro re-exports [#7120](https://github.com/rust-lang/rust-clippy/pull/7120) ### Suggestion Fixes/Improvements * [`redundant_pattern_matching`]: Add a note when applying this lint would change the drop order [#6568](https://github.com/rust-lang/rust-clippy/pull/6568) * [`write_literal`], [`print_literal`]: Add auto-applicable suggestion [#6821](https://github.com/rust-lang/rust-clippy/pull/6821) * [`manual_map`]: Fix suggestion for complex `if let ... else` chains [#6856](https://github.com/rust-lang/rust-clippy/pull/6856) * [`inconsistent_struct_constructor`]: Make lint description and message clearer [#6892](https://github.com/rust-lang/rust-clippy/pull/6892) * [`map_entry`]: Now suggests `or_insert`, `insert_with` or `match _.entry(_)` as appropriate [#6937](https://github.com/rust-lang/rust-clippy/pull/6937) * [`manual_flatten`]: Suggest to insert `copied` if necessary [#6962](https://github.com/rust-lang/rust-clippy/pull/6962) * [`redundant_slicing`]: Fix suggestion when a re-borrow might be required or when the value is from a macro call [#6975](https://github.com/rust-lang/rust-clippy/pull/6975) * [`match_wildcard_for_single_variants`]: Fix suggestion for hidden variant [#6988](https://github.com/rust-lang/rust-clippy/pull/6988) * [`clone_on_copy`]: Correct suggestion when the cloned value is a macro call [#7000](https://github.com/rust-lang/rust-clippy/pull/7000) * [`manual_map`]: Fix suggestion at the end of an if chain [#7004](https://github.com/rust-lang/rust-clippy/pull/7004) * Fix needless parenthesis output in multiple lint suggestions [#7013](https://github.com/rust-lang/rust-clippy/pull/7013) * [`needless_collect`]: Better explanation in the lint message [#7020](https://github.com/rust-lang/rust-clippy/pull/7020) * [`useless_vec`]: Now considers mutability [#7036](https://github.com/rust-lang/rust-clippy/pull/7036) * [`useless_format`]: Wrap the content in braces if necessary [#7092](https://github.com/rust-lang/rust-clippy/pull/7092) * [`single_match`]: Don't suggest an equality check for types which don't implement `PartialEq` [#7093](https://github.com/rust-lang/rust-clippy/pull/7093) * [`from_over_into`]: Mention type in help message [#7099](https://github.com/rust-lang/rust-clippy/pull/7099) * [`manual_unwrap_or`]: Fix invalid code suggestion due to a macro call [#7136](https://github.com/rust-lang/rust-clippy/pull/7136) ### ICE Fixes * [`macro_use_imports`] [#7022](https://github.com/rust-lang/rust-clippy/pull/7022) * [`missing_panics_doc`] [#7034](https://github.com/rust-lang/rust-clippy/pull/7034) * [`tabs_in_doc_comments`] [#7039](https://github.com/rust-lang/rust-clippy/pull/7039) * [`missing_const_for_fn`] [#7128](https://github.com/rust-lang/rust-clippy/pull/7128) ### Others * [Clippy's lint list](https://rust-lang.github.io/rust-clippy/master/index.html) now supports themes [#7030](https://github.com/rust-lang/rust-clippy/pull/7030) * Lints that were uplifted to `rustc` now mention the new `rustc` name in the deprecation warning [#7056](https://github.com/rust-lang/rust-clippy/pull/7056) ## Rust 1.52 Released 2021-05-06 [View all 102 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2021-02-03T15%3A59%3A06Z..2021-03-11T20%3A06%3A43Z+base%3Amaster) ### New Lints * [`from_str_radix_10`] [#6717](https://github.com/rust-lang/rust-clippy/pull/6717) * [`implicit_clone`] [#6730](https://github.com/rust-lang/rust-clippy/pull/6730) * [`semicolon_if_nothing_returned`] [#6681](https://github.com/rust-lang/rust-clippy/pull/6681) * [`manual_flatten`] [#6646](https://github.com/rust-lang/rust-clippy/pull/6646) * [`inconsistent_struct_constructor`] [#6769](https://github.com/rust-lang/rust-clippy/pull/6769) * [`iter_count`] [#6791](https://github.com/rust-lang/rust-clippy/pull/6791) * [`default_numeric_fallback`] [#6662](https://github.com/rust-lang/rust-clippy/pull/6662) * [`bytes_nth`] [#6695](https://github.com/rust-lang/rust-clippy/pull/6695) * [`filter_map_identity`] [#6685](https://github.com/rust-lang/rust-clippy/pull/6685) * [`manual_map`] [#6573](https://github.com/rust-lang/rust-clippy/pull/6573) ### Moves and Deprecations * Moved [`upper_case_acronyms`] to `pedantic` [#6775](https://github.com/rust-lang/rust-clippy/pull/6775) * Moved [`manual_map`] to `nursery` [#6796](https://github.com/rust-lang/rust-clippy/pull/6796) * Moved [`unnecessary_wraps`] to `pedantic` [#6765](https://github.com/rust-lang/rust-clippy/pull/6765) * Moved [`trivial_regex`] to `nursery` [#6696](https://github.com/rust-lang/rust-clippy/pull/6696) * Moved [`naive_bytecount`] to `pedantic` [#6825](https://github.com/rust-lang/rust-clippy/pull/6825) * Moved [`upper_case_acronyms`] to `style` [#6788](https://github.com/rust-lang/rust-clippy/pull/6788) * Moved [`manual_map`] to `style` [#6801](https://github.com/rust-lang/rust-clippy/pull/6801) ### Enhancements * [`disallowed_methods`]: Now supports functions in addition to methods [#6674](https://github.com/rust-lang/rust-clippy/pull/6674) * [`upper_case_acronyms`]: Added a new configuration `upper-case-acronyms-aggressive` to trigger the lint if there is more than one uppercase character next to each other [#6788](https://github.com/rust-lang/rust-clippy/pull/6788) * [`collapsible_match`]: Now supports block comparison with different value names [#6754](https://github.com/rust-lang/rust-clippy/pull/6754) * [`unnecessary_wraps`]: Will now suggest removing unnecessary wrapped return unit type, like `Option<()>` [#6665](https://github.com/rust-lang/rust-clippy/pull/6665) * Improved value usage detection in closures [#6698](https://github.com/rust-lang/rust-clippy/pull/6698) ### False Positive Fixes * [`use_self`]: No longer lints in macros [#6833](https://github.com/rust-lang/rust-clippy/pull/6833) * [`use_self`]: Fixed multiple false positives for: generics, associated types and derive implementations [#6179](https://github.com/rust-lang/rust-clippy/pull/6179) * [`missing_inline_in_public_items`]: No longer lints for procedural macros [#6814](https://github.com/rust-lang/rust-clippy/pull/6814) * [`inherent_to_string`]: No longer lints on functions with function generics [#6771](https://github.com/rust-lang/rust-clippy/pull/6771) * [`doc_markdown`]: Add `OpenDNS` to the default configuration as an allowed identifier [#6783](https://github.com/rust-lang/rust-clippy/pull/6783) * [`missing_panics_doc`]: No longer lints on [`unreachable!`](https://doc.rust-lang.org/std/macro.unreachable.html) [#6700](https://github.com/rust-lang/rust-clippy/pull/6700) * [`collapsible_if`]: No longer lints on if statements with attributes [#6701](https://github.com/rust-lang/rust-clippy/pull/6701) * [`match_same_arms`]: Only considers empty blocks as equal if the tokens contained are the same [#6843](https://github.com/rust-lang/rust-clippy/pull/6843) * [`redundant_closure`]: Now ignores macros [#6871](https://github.com/rust-lang/rust-clippy/pull/6871) * [`manual_map`]: Fixed false positives when control flow statements like `return`, `break` etc. are used [#6801](https://github.com/rust-lang/rust-clippy/pull/6801) * [`vec_init_then_push`]: Fixed false positives for loops and if statements [#6697](https://github.com/rust-lang/rust-clippy/pull/6697) * [`len_without_is_empty`]: Will now consider multiple impl blocks and `#[allow]` on the `len` method as well as the type definition. [#6853](https://github.com/rust-lang/rust-clippy/pull/6853) * [`let_underscore_drop`]: Only lints on types which implement `Drop` [#6682](https://github.com/rust-lang/rust-clippy/pull/6682) * [`unit_arg`]: No longer lints on unit arguments when they come from a path expression. [#6601](https://github.com/rust-lang/rust-clippy/pull/6601) * [`cargo_common_metadata`]: No longer lints if [`publish = false`](https://doc.rust-lang.org/cargo/reference/manifest.html#the-publish-field) is defined in the manifest [#6650](https://github.com/rust-lang/rust-clippy/pull/6650) ### Suggestion Fixes/Improvements * [`collapsible_match`]: Fixed lint message capitalization [#6766](https://github.com/rust-lang/rust-clippy/pull/6766) * [`or_fun_call`]: Improved suggestions for `or_insert(vec![])` [#6790](https://github.com/rust-lang/rust-clippy/pull/6790) * [`manual_map`]: No longer expands macros in the suggestions [#6801](https://github.com/rust-lang/rust-clippy/pull/6801) * Aligned Clippy's lint messages with the rustc dev guide [#6787](https://github.com/rust-lang/rust-clippy/pull/6787) ### ICE Fixes * [`zero_sized_map_values`] [#6866](https://github.com/rust-lang/rust-clippy/pull/6866) ### Documentation Improvements * [`useless_format`]: Improved the documentation example [#6854](https://github.com/rust-lang/rust-clippy/pull/6854) * Clippy's [`README.md`]: Includes a new subsection on running Clippy as a rustc wrapper [#6782](https://github.com/rust-lang/rust-clippy/pull/6782) ### Others * Running `cargo clippy` after `cargo check` now works as expected (`cargo clippy` and `cargo check` no longer shares the same build cache) [#6687](https://github.com/rust-lang/rust-clippy/pull/6687) * Cargo now re-runs Clippy if arguments after `--` provided to `cargo clippy` are changed. [#6834](https://github.com/rust-lang/rust-clippy/pull/6834) * Extracted Clippy's `utils` module into the new `clippy_utils` crate [#6756](https://github.com/rust-lang/rust-clippy/pull/6756) * Clippy lintcheck tool improvements [#6800](https://github.com/rust-lang/rust-clippy/pull/6800) [#6735](https://github.com/rust-lang/rust-clippy/pull/6735) [#6764](https://github.com/rust-lang/rust-clippy/pull/6764) [#6708](https://github.com/rust-lang/rust-clippy/pull/6708) [#6780](https://github.com/rust-lang/rust-clippy/pull/6780) [#6686](https://github.com/rust-lang/rust-clippy/pull/6686) ## Rust 1.51 Released 2021-03-25 [View all 78 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2020-12-21T15%3A43%3A04Z..2021-02-03T04%3A21%3A10Z+base%3Amaster) ### New Lints * [`upper_case_acronyms`] [#6475](https://github.com/rust-lang/rust-clippy/pull/6475) * [`from_over_into`] [#6476](https://github.com/rust-lang/rust-clippy/pull/6476) * [`case_sensitive_file_extension_comparisons`] [#6500](https://github.com/rust-lang/rust-clippy/pull/6500) * [`needless_question_mark`] [#6507](https://github.com/rust-lang/rust-clippy/pull/6507) * [`missing_panics_doc`] [#6523](https://github.com/rust-lang/rust-clippy/pull/6523) * [`redundant_slicing`] [#6528](https://github.com/rust-lang/rust-clippy/pull/6528) * [`vec_init_then_push`] [#6538](https://github.com/rust-lang/rust-clippy/pull/6538) * [`ptr_as_ptr`] [#6542](https://github.com/rust-lang/rust-clippy/pull/6542) * [`collapsible_else_if`] (split out from `collapsible_if`) [#6544](https://github.com/rust-lang/rust-clippy/pull/6544) * [`inspect_for_each`] [#6577](https://github.com/rust-lang/rust-clippy/pull/6577) * [`manual_filter_map`] [#6591](https://github.com/rust-lang/rust-clippy/pull/6591) * [`exhaustive_enums`] [#6617](https://github.com/rust-lang/rust-clippy/pull/6617) * [`exhaustive_structs`] [#6617](https://github.com/rust-lang/rust-clippy/pull/6617) ### Moves and Deprecations * Replace [`find_map`] with [`manual_find_map`] [#6591](https://github.com/rust-lang/rust-clippy/pull/6591) * `unknown_clippy_lints` Now integrated in the `unknown_lints` rustc lint [#6653](https://github.com/rust-lang/rust-clippy/pull/6653) ### Enhancements * [`ptr_arg`] Now also suggests to use `&Path` instead of `&PathBuf` [#6506](https://github.com/rust-lang/rust-clippy/pull/6506) * [`cast_ptr_alignment`] Also lint when the `pointer::cast` method is used [#6557](https://github.com/rust-lang/rust-clippy/pull/6557) * [`collapsible_match`] Now also deals with `&` and `*` operators in the `match` scrutinee [#6619](https://github.com/rust-lang/rust-clippy/pull/6619) ### False Positive Fixes * [`similar_names`] Ignore underscore prefixed names [#6403](https://github.com/rust-lang/rust-clippy/pull/6403) * [`print_literal`] and [`write_literal`] No longer lint numeric literals [#6408](https://github.com/rust-lang/rust-clippy/pull/6408) * [`large_enum_variant`] No longer lints in external macros [#6485](https://github.com/rust-lang/rust-clippy/pull/6485) * [`empty_enum`] Only lint if `never_type` feature is enabled [#6513](https://github.com/rust-lang/rust-clippy/pull/6513) * [`field_reassign_with_default`] No longer lints in macros [#6553](https://github.com/rust-lang/rust-clippy/pull/6553) * [`size_of_in_element_count`] No longer lints when dividing by element size [#6578](https://github.com/rust-lang/rust-clippy/pull/6578) * [`needless_return`] No longer lints in macros [#6586](https://github.com/rust-lang/rust-clippy/pull/6586) * [`match_overlapping_arm`] No longer lint when first arm is completely included in second arm [#6603](https://github.com/rust-lang/rust-clippy/pull/6603) * [`doc_markdown`] Add `WebGL` to the default configuration as an allowed identifier [#6605](https://github.com/rust-lang/rust-clippy/pull/6605) ### Suggestion Fixes/Improvements * [`field_reassign_with_default`] Don't expand macro in lint suggestion [#6531](https://github.com/rust-lang/rust-clippy/pull/6531) * [`match_like_matches_macro`] Strip references in suggestion [#6532](https://github.com/rust-lang/rust-clippy/pull/6532) * [`single_match`] Suggest `if` over `if let` when possible [#6574](https://github.com/rust-lang/rust-clippy/pull/6574) * `ref_in_deref` Use parentheses correctly in suggestion [#6609](https://github.com/rust-lang/rust-clippy/pull/6609) * [`stable_sort_primitive`] Clarify error message [#6611](https://github.com/rust-lang/rust-clippy/pull/6611) ### ICE Fixes * [`zero_sized_map_values`] [#6582](https://github.com/rust-lang/rust-clippy/pull/6582) ### Documentation Improvements * Improve search performance on the Clippy website and make it possible to directly search for lints on the GitHub issue tracker [#6483](https://github.com/rust-lang/rust-clippy/pull/6483) * Clean up `README.md` by removing outdated paragraph [#6488](https://github.com/rust-lang/rust-clippy/pull/6488) * [`await_holding_refcell_ref`] and [`await_holding_lock`] [#6585](https://github.com/rust-lang/rust-clippy/pull/6585) * [`as_conversions`] [#6608](https://github.com/rust-lang/rust-clippy/pull/6608) ### Others * Clippy now has a [Roadmap] for 2021. If you like to get involved in a bigger project, take a look at the [Roadmap project page]. All issues listed there are actively mentored [#6462](https://github.com/rust-lang/rust-clippy/pull/6462) * The Clippy version number now corresponds to the Rust version number [#6526](https://github.com/rust-lang/rust-clippy/pull/6526) * Fix oversight which caused Clippy to lint deps in some environments, where `CLIPPY_TESTS=true` was set somewhere [#6575](https://github.com/rust-lang/rust-clippy/pull/6575) * Add `cargo dev-lintcheck` tool to the Clippy Dev Tool [#6469](https://github.com/rust-lang/rust-clippy/pull/6469) [Roadmap]: https://github.com/rust-lang/rust-clippy/blob/master/book/src/development/proposals/roadmap-2021.md [Roadmap project page]: https://github.com/rust-lang/rust-clippy/projects/3 ## Rust 1.50 Released 2021-02-11 [View all 119 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2020-11-06T18%3A32%3A40Z..2021-01-03T14%3A51%3A18Z+base%3Amaster) ### New Lints * [`suspicious_operation_groupings`] [#6086](https://github.com/rust-lang/rust-clippy/pull/6086) * [`size_of_in_element_count`] [#6394](https://github.com/rust-lang/rust-clippy/pull/6394) * [`unnecessary_wraps`] [#6070](https://github.com/rust-lang/rust-clippy/pull/6070) * [`let_underscore_drop`] [#6305](https://github.com/rust-lang/rust-clippy/pull/6305) * [`collapsible_match`] [#6402](https://github.com/rust-lang/rust-clippy/pull/6402) * [`redundant_else`] [#6330](https://github.com/rust-lang/rust-clippy/pull/6330) * [`zero_sized_map_values`] [#6218](https://github.com/rust-lang/rust-clippy/pull/6218) * [`print_stderr`] [#6367](https://github.com/rust-lang/rust-clippy/pull/6367) * [`string_from_utf8_as_bytes`] [#6134](https://github.com/rust-lang/rust-clippy/pull/6134) ### Moves and Deprecations * Previously deprecated [`str_to_string`] and [`string_to_string`] have been un-deprecated as `restriction` lints [#6333](https://github.com/rust-lang/rust-clippy/pull/6333) * Deprecate `panic_params` lint. This is now available in rustc as `non_fmt_panics` [#6351](https://github.com/rust-lang/rust-clippy/pull/6351) * Move [`map_err_ignore`] to `restriction` [#6416](https://github.com/rust-lang/rust-clippy/pull/6416) * Move [`await_holding_refcell_ref`] to `pedantic` [#6354](https://github.com/rust-lang/rust-clippy/pull/6354) * Move [`await_holding_lock`] to `pedantic` [#6354](https://github.com/rust-lang/rust-clippy/pull/6354) ### Enhancements * Add the `unreadable-literal-lint-fractions` configuration to disable the `unreadable_literal` lint for fractions [#6421](https://github.com/rust-lang/rust-clippy/pull/6421) * [`clone_on_copy`]: Now shows the type in the lint message [#6443](https://github.com/rust-lang/rust-clippy/pull/6443) * [`redundant_pattern_matching`]: Now also lints on `std::task::Poll` [#6339](https://github.com/rust-lang/rust-clippy/pull/6339) * [`redundant_pattern_matching`]: Additionally also lints on `std::net::IpAddr` [#6377](https://github.com/rust-lang/rust-clippy/pull/6377) * [`search_is_some`]: Now suggests `contains` instead of `find(foo).is_some()` [#6119](https://github.com/rust-lang/rust-clippy/pull/6119) * [`clone_double_ref`]: Now prints the reference type in the lint message [#6442](https://github.com/rust-lang/rust-clippy/pull/6442) * [`modulo_one`]: Now also lints on -1. [#6360](https://github.com/rust-lang/rust-clippy/pull/6360) * [`empty_loop`]: Now lints no_std crates, too [#6205](https://github.com/rust-lang/rust-clippy/pull/6205) * [`or_fun_call`]: Now also lints when indexing `HashMap` or `BTreeMap` [#6267](https://github.com/rust-lang/rust-clippy/pull/6267) * [`wrong_self_convention`]: Now also lints in trait definitions [#6316](https://github.com/rust-lang/rust-clippy/pull/6316) * [`needless_borrow`]: Print the type in the lint message [#6449](https://github.com/rust-lang/rust-clippy/pull/6449) [msrv_readme]: https://github.com/rust-lang/rust-clippy#specifying-the-minimum-supported-rust-version ### False Positive Fixes * [`manual_range_contains`]: No longer lints in `const fn` [#6382](https://github.com/rust-lang/rust-clippy/pull/6382) * [`unnecessary_lazy_evaluations`]: No longer lints if closure argument is used [#6370](https://github.com/rust-lang/rust-clippy/pull/6370) * [`match_single_binding`]: Now ignores cases with `#[cfg()]` macros [#6435](https://github.com/rust-lang/rust-clippy/pull/6435) * [`match_like_matches_macro`]: No longer lints on arms with attributes [#6290](https://github.com/rust-lang/rust-clippy/pull/6290) * [`map_clone`]: No longer lints with deref and clone [#6269](https://github.com/rust-lang/rust-clippy/pull/6269) * [`map_clone`]: No longer lints in the case of &mut [#6301](https://github.com/rust-lang/rust-clippy/pull/6301) * [`needless_update`]: Now ignores `non_exhaustive` structs [#6464](https://github.com/rust-lang/rust-clippy/pull/6464) * [`needless_collect`]: No longer lints when a collect is needed multiple times [#6313](https://github.com/rust-lang/rust-clippy/pull/6313) * [`unnecessary_cast`] No longer lints cfg-dependent types [#6369](https://github.com/rust-lang/rust-clippy/pull/6369) * [`declare_interior_mutable_const`] and [`borrow_interior_mutable_const`]: Both now ignore enums with frozen variants [#6110](https://github.com/rust-lang/rust-clippy/pull/6110) * [`field_reassign_with_default`] No longer lint for private fields [#6537](https://github.com/rust-lang/rust-clippy/pull/6537) ### Suggestion Fixes/Improvements * [`vec_box`]: Provide correct type scope suggestion [#6271](https://github.com/rust-lang/rust-clippy/pull/6271) * [`manual_range_contains`]: Give correct suggestion when using floats [#6320](https://github.com/rust-lang/rust-clippy/pull/6320) * [`unnecessary_lazy_evaluations`]: Don't always mark suggestion as MachineApplicable [#6272](https://github.com/rust-lang/rust-clippy/pull/6272) * [`manual_async_fn`]: Improve suggestion formatting [#6294](https://github.com/rust-lang/rust-clippy/pull/6294) * [`unnecessary_cast`]: Fix incorrectly formatted float literal suggestion [#6362](https://github.com/rust-lang/rust-clippy/pull/6362) ### ICE Fixes * Fix a crash in [`from_iter_instead_of_collect`] [#6304](https://github.com/rust-lang/rust-clippy/pull/6304) * Fix a silent crash when parsing doc comments in [`needless_doctest_main`] [#6458](https://github.com/rust-lang/rust-clippy/pull/6458) ### Documentation Improvements * The lint website search has been improved ([#6477](https://github.com/rust-lang/rust-clippy/pull/6477)): * Searching for lints with dashes and spaces is possible now. For example `missing-errors-doc` and `missing errors doc` are now valid aliases for lint names * Improved fuzzy search in lint descriptions * Various README improvements [#6287](https://github.com/rust-lang/rust-clippy/pull/6287) * Add known problems to [`comparison_chain`] documentation [#6390](https://github.com/rust-lang/rust-clippy/pull/6390) * Fix example used in [`cargo_common_metadata`] [#6293](https://github.com/rust-lang/rust-clippy/pull/6293) * Improve [`map_clone`] documentation [#6340](https://github.com/rust-lang/rust-clippy/pull/6340) ### Others * You can now tell Clippy about the MSRV your project supports. Please refer to the specific README section to learn more about MSRV support [here][msrv_readme] [#6201](https://github.com/rust-lang/rust-clippy/pull/6201) * Add `--no-deps` option to avoid running on path dependencies in workspaces [#6188](https://github.com/rust-lang/rust-clippy/pull/6188) ## Rust 1.49 Released 2020-12-31 [View all 107 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2020-09-24T14%3A05%3A12Z..2020-11-05T13%3A35%3A44Z+base%3Amaster) ### New Lints * [`field_reassign_with_default`] [#5911](https://github.com/rust-lang/rust-clippy/pull/5911) * [`await_holding_refcell_ref`] [#6029](https://github.com/rust-lang/rust-clippy/pull/6029) * [`disallowed_methods`] [#6081](https://github.com/rust-lang/rust-clippy/pull/6081) * [`inline_asm_x86_att_syntax`] [#6092](https://github.com/rust-lang/rust-clippy/pull/6092) * [`inline_asm_x86_intel_syntax`] [#6092](https://github.com/rust-lang/rust-clippy/pull/6092) * [`from_iter_instead_of_collect`] [#6101](https://github.com/rust-lang/rust-clippy/pull/6101) * [`mut_mutex_lock`] [#6103](https://github.com/rust-lang/rust-clippy/pull/6103) * [`single_element_loop`] [#6109](https://github.com/rust-lang/rust-clippy/pull/6109) * [`manual_unwrap_or`] [#6123](https://github.com/rust-lang/rust-clippy/pull/6123) * [`large_types_passed_by_value`] [#6135](https://github.com/rust-lang/rust-clippy/pull/6135) * [`result_unit_err`] [#6157](https://github.com/rust-lang/rust-clippy/pull/6157) * [`ref_option_ref`] [#6165](https://github.com/rust-lang/rust-clippy/pull/6165) * [`manual_range_contains`] [#6177](https://github.com/rust-lang/rust-clippy/pull/6177) * [`unusual_byte_groupings`] [#6183](https://github.com/rust-lang/rust-clippy/pull/6183) * [`comparison_to_empty`] [#6226](https://github.com/rust-lang/rust-clippy/pull/6226) * [`map_collect_result_unit`] [#6227](https://github.com/rust-lang/rust-clippy/pull/6227) * [`manual_ok_or`] [#6233](https://github.com/rust-lang/rust-clippy/pull/6233) ### Moves and Deprecations * Rename `single_char_push_str` to [`single_char_add_str`] [#6037](https://github.com/rust-lang/rust-clippy/pull/6037) * Rename `zero_width_space` to [`invisible_characters`] [#6105](https://github.com/rust-lang/rust-clippy/pull/6105) * Deprecate `drop_bounds` (uplifted) [#6111](https://github.com/rust-lang/rust-clippy/pull/6111) * Move [`string_lit_as_bytes`] to `nursery` [#6117](https://github.com/rust-lang/rust-clippy/pull/6117) * Move [`rc_buffer`] to `restriction` [#6128](https://github.com/rust-lang/rust-clippy/pull/6128) ### Enhancements * [`manual_memcpy`]: Also lint when there are loop counters (and produce a reliable suggestion) [#5727](https://github.com/rust-lang/rust-clippy/pull/5727) * [`single_char_add_str`]: Also lint on `String::insert_str` [#6037](https://github.com/rust-lang/rust-clippy/pull/6037) * [`invisible_characters`]: Also lint the characters `\u{AD}` and `\u{2060}` [#6105](https://github.com/rust-lang/rust-clippy/pull/6105) * [`eq_op`]: Also lint on the `assert_*!` macro family [#6167](https://github.com/rust-lang/rust-clippy/pull/6167) * [`items_after_statements`]: Also lint in local macro expansions [#6176](https://github.com/rust-lang/rust-clippy/pull/6176) * [`unnecessary_cast`]: Also lint casts on integer and float literals [#6187](https://github.com/rust-lang/rust-clippy/pull/6187) * [`manual_unwrap_or`]: Also lint `Result::unwrap_or` [#6190](https://github.com/rust-lang/rust-clippy/pull/6190) * [`match_like_matches_macro`]: Also lint when `match` has more than two arms [#6216](https://github.com/rust-lang/rust-clippy/pull/6216) * [`integer_arithmetic`]: Better handle `/` an `%` operators [#6229](https://github.com/rust-lang/rust-clippy/pull/6229) ### False Positive Fixes * [`needless_lifetimes`]: Bail out if the function has a `where` clause with the lifetime [#5978](https://github.com/rust-lang/rust-clippy/pull/5978) * [`explicit_counter_loop`]: No longer lints, when loop counter is used after it is incremented [#6076](https://github.com/rust-lang/rust-clippy/pull/6076) * [`or_fun_call`]: Revert changes addressing the handling of `const fn` [#6077](https://github.com/rust-lang/rust-clippy/pull/6077) * [`needless_range_loop`]: No longer lints, when the iterable is used in the range [#6102](https://github.com/rust-lang/rust-clippy/pull/6102) * [`inconsistent_digit_grouping`]: Fix bug when using floating point exponent [#6104](https://github.com/rust-lang/rust-clippy/pull/6104) * [`mistyped_literal_suffixes`]: No longer lints on the fractional part of a float (e.g. `713.32_64`) [#6114](https://github.com/rust-lang/rust-clippy/pull/6114) * [`invalid_regex`]: No longer lint on unicode characters within `bytes::Regex` [#6132](https://github.com/rust-lang/rust-clippy/pull/6132) * [`boxed_local`]: No longer lints on `extern fn` arguments [#6133](https://github.com/rust-lang/rust-clippy/pull/6133) * [`needless_lifetimes`]: Fix regression, where lifetime is used in `where` clause [#6198](https://github.com/rust-lang/rust-clippy/pull/6198) ### Suggestion Fixes/Improvements * [`unnecessary_sort_by`]: Avoid dereferencing the suggested closure parameter [#6078](https://github.com/rust-lang/rust-clippy/pull/6078) * [`needless_arbitrary_self_type`]: Correctly handle expanded code [#6093](https://github.com/rust-lang/rust-clippy/pull/6093) * [`useless_format`]: Preserve raw strings in suggestion [#6151](https://github.com/rust-lang/rust-clippy/pull/6151) * [`empty_loop`]: Suggest alternatives [#6162](https://github.com/rust-lang/rust-clippy/pull/6162) * [`borrowed_box`]: Correctly add parentheses in suggestion [#6200](https://github.com/rust-lang/rust-clippy/pull/6200) * [`unused_unit`]: Improve suggestion formatting [#6247](https://github.com/rust-lang/rust-clippy/pull/6247) ### Documentation Improvements * Some doc improvements: * [`rc_buffer`] [#6090](https://github.com/rust-lang/rust-clippy/pull/6090) * [`empty_loop`] [#6162](https://github.com/rust-lang/rust-clippy/pull/6162) * [`doc_markdown`]: Document problematic link text style [#6107](https://github.com/rust-lang/rust-clippy/pull/6107) ## Rust 1.48 Released 2020-11-19 [View all 99 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2020-08-11T13%3A14%3A38Z..2020-09-23T18%3A55%3A22Z+base%3Amaster) ### New lints * [`self_assignment`] [#5894](https://github.com/rust-lang/rust-clippy/pull/5894) * [`unnecessary_lazy_evaluations`] [#5720](https://github.com/rust-lang/rust-clippy/pull/5720) * [`manual_strip`] [#6038](https://github.com/rust-lang/rust-clippy/pull/6038) * [`map_err_ignore`] [#5998](https://github.com/rust-lang/rust-clippy/pull/5998) * [`rc_buffer`] [#6044](https://github.com/rust-lang/rust-clippy/pull/6044) * `to_string_in_display` [#5831](https://github.com/rust-lang/rust-clippy/pull/5831) * `single_char_push_str` [#5881](https://github.com/rust-lang/rust-clippy/pull/5881) ### Moves and Deprecations * Downgrade [`verbose_bit_mask`] to pedantic [#6036](https://github.com/rust-lang/rust-clippy/pull/6036) ### Enhancements * Extend [`precedence`] to handle chains of methods combined with unary negation [#5928](https://github.com/rust-lang/rust-clippy/pull/5928) * [`useless_vec`]: add a configuration value for the maximum allowed size on the stack [#5907](https://github.com/rust-lang/rust-clippy/pull/5907) * [`suspicious_arithmetic_impl`]: extend to implementations of `BitAnd`, `BitOr`, `BitXor`, `Rem`, `Shl`, and `Shr` [#5884](https://github.com/rust-lang/rust-clippy/pull/5884) * `invalid_atomic_ordering`: detect misuse of `compare_exchange`, `compare_exchange_weak`, and `fetch_update` [#6025](https://github.com/rust-lang/rust-clippy/pull/6025) * Avoid [`redundant_pattern_matching`] triggering in macros [#6069](https://github.com/rust-lang/rust-clippy/pull/6069) * [`option_if_let_else`]: distinguish pure from impure `else` expressions [#5937](https://github.com/rust-lang/rust-clippy/pull/5937) * [`needless_doctest_main`]: parse doctests instead of using textual search [#5912](https://github.com/rust-lang/rust-clippy/pull/5912) * [`wildcard_imports`]: allow `prelude` to appear in any segment of an import [#5929](https://github.com/rust-lang/rust-clippy/pull/5929) * Re-enable [`len_zero`] for ranges now that `range_is_empty` is stable [#5961](https://github.com/rust-lang/rust-clippy/pull/5961) * [`option_as_ref_deref`]: catch fully-qualified calls to `Deref::deref` and `DerefMut::deref_mut` [#5933](https://github.com/rust-lang/rust-clippy/pull/5933) ### False Positive Fixes * [`useless_attribute`]: permit allowing [`wildcard_imports`] and [`enum_glob_use`] [#5994](https://github.com/rust-lang/rust-clippy/pull/5994) * [`transmute_ptr_to_ptr`]: avoid suggesting dereferencing raw pointers in const contexts [#5999](https://github.com/rust-lang/rust-clippy/pull/5999) * [`redundant_closure_call`]: take into account usages of the closure in nested functions and closures [#5920](https://github.com/rust-lang/rust-clippy/pull/5920) * Fix false positive in [`borrow_interior_mutable_const`] when referencing a field behind a pointer [#5949](https://github.com/rust-lang/rust-clippy/pull/5949) * [`doc_markdown`]: allow using "GraphQL" without backticks [#5996](https://github.com/rust-lang/rust-clippy/pull/5996) * `to_string_in_display`: avoid linting when calling `to_string()` on anything that is not `self` [#5971](https://github.com/rust-lang/rust-clippy/pull/5971) * [`indexing_slicing`] and [`out_of_bounds_indexing`] treat references to arrays as arrays [#6034](https://github.com/rust-lang/rust-clippy/pull/6034) * [`should_implement_trait`]: ignore methods with lifetime parameters [#5725](https://github.com/rust-lang/rust-clippy/pull/5725) * [`needless_return`]: avoid linting if a temporary borrows a local variable [#5903](https://github.com/rust-lang/rust-clippy/pull/5903) * Restrict [`unnecessary_sort_by`] to non-reference, Copy types [#6006](https://github.com/rust-lang/rust-clippy/pull/6006) * Avoid suggesting `from_bits`/`to_bits` in const contexts in [`transmute_int_to_float`] [#5919](https://github.com/rust-lang/rust-clippy/pull/5919) * [`declare_interior_mutable_const`] and [`borrow_interior_mutable_const`]: improve detection of interior mutable types [#6046](https://github.com/rust-lang/rust-clippy/pull/6046) ### Suggestion Fixes/Improvements * [`let_and_return`]: add a cast to the suggestion when the return expression has adjustments [#5946](https://github.com/rust-lang/rust-clippy/pull/5946) * [`useless_conversion`]: show the type in the error message [#6035](https://github.com/rust-lang/rust-clippy/pull/6035) * [`unnecessary_mut_passed`]: discriminate between functions and methods in the error message [#5892](https://github.com/rust-lang/rust-clippy/pull/5892) * [`float_cmp`] and [`float_cmp_const`]: change wording to make margin of error less ambiguous [#6043](https://github.com/rust-lang/rust-clippy/pull/6043) * [`default_trait_access`]: do not use unnecessary type parameters in the suggestion [#5993](https://github.com/rust-lang/rust-clippy/pull/5993) * [`collapsible_if`]: don't use expanded code in the suggestion [#5992](https://github.com/rust-lang/rust-clippy/pull/5992) * Do not suggest empty format strings in [`print_with_newline`] and [`write_with_newline`] [#6042](https://github.com/rust-lang/rust-clippy/pull/6042) * [`unit_arg`]: improve the readability of the suggestion [#5931](https://github.com/rust-lang/rust-clippy/pull/5931) * [`stable_sort_primitive`]: print the type that is being sorted in the lint message [#5935](https://github.com/rust-lang/rust-clippy/pull/5935) * Show line count and max lines in [`too_many_lines`] lint message [#6009](https://github.com/rust-lang/rust-clippy/pull/6009) * Keep parentheses in the suggestion of [`useless_conversion`] where applicable [#5900](https://github.com/rust-lang/rust-clippy/pull/5900) * [`option_map_unit_fn`] and [`result_map_unit_fn`]: print the unit type `()` explicitly [#6024](https://github.com/rust-lang/rust-clippy/pull/6024) * [`redundant_allocation`]: suggest replacing `Rc>` with `Rc` [#5899](https://github.com/rust-lang/rust-clippy/pull/5899) * Make lint messages adhere to rustc dev guide conventions [#5893](https://github.com/rust-lang/rust-clippy/pull/5893) ### ICE Fixes * Fix ICE in [`repeat_once`] [#5948](https://github.com/rust-lang/rust-clippy/pull/5948) ### Documentation Improvements * [`mutable_key_type`]: explain potential for false positives when the interior mutable type is not accessed in the `Hash` implementation [#6019](https://github.com/rust-lang/rust-clippy/pull/6019) * [`unnecessary_mut_passed`]: fix typo [#5913](https://github.com/rust-lang/rust-clippy/pull/5913) * Add example of false positive to [`ptr_arg`] docs. [#5885](https://github.com/rust-lang/rust-clippy/pull/5885) * [`box_vec`](https://rust-lang.github.io/rust-clippy/master/index.html#box_collection), [`vec_box`] and [`borrowed_box`]: add link to the documentation of `Box` [#6023](https://github.com/rust-lang/rust-clippy/pull/6023) ## Rust 1.47 Released 2020-10-08 [View all 76 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2020-06-23T16%3A27%3A11Z..2020-08-11T12%3A52%3A41Z+base%3Amaster) ### New lints * [`derive_ord_xor_partial_ord`] [#5848](https://github.com/rust-lang/rust-clippy/pull/5848) * [`trait_duplication_in_bounds`] [#5852](https://github.com/rust-lang/rust-clippy/pull/5852) * [`map_identity`] [#5694](https://github.com/rust-lang/rust-clippy/pull/5694) * [`unit_return_expecting_ord`] [#5737](https://github.com/rust-lang/rust-clippy/pull/5737) * [`pattern_type_mismatch`] [#4841](https://github.com/rust-lang/rust-clippy/pull/4841) * [`repeat_once`] [#5773](https://github.com/rust-lang/rust-clippy/pull/5773) * [`same_item_push`] [#5825](https://github.com/rust-lang/rust-clippy/pull/5825) * [`needless_arbitrary_self_type`] [#5869](https://github.com/rust-lang/rust-clippy/pull/5869) * [`match_like_matches_macro`] [#5769](https://github.com/rust-lang/rust-clippy/pull/5769) * [`stable_sort_primitive`] [#5809](https://github.com/rust-lang/rust-clippy/pull/5809) * [`blanket_clippy_restriction_lints`] [#5750](https://github.com/rust-lang/rust-clippy/pull/5750) * [`option_if_let_else`] [#5301](https://github.com/rust-lang/rust-clippy/pull/5301) ### Moves and Deprecations * Deprecate [`regex_macro`] lint [#5760](https://github.com/rust-lang/rust-clippy/pull/5760) * Move [`range_minus_one`] to `pedantic` [#5752](https://github.com/rust-lang/rust-clippy/pull/5752) ### Enhancements * Improve [`needless_collect`] by catching `collect` calls followed by `iter` or `into_iter` calls [#5837](https://github.com/rust-lang/rust-clippy/pull/5837) * [`panic`], [`todo`], [`unimplemented`] and [`unreachable`] now detect calls with formatting [#5811](https://github.com/rust-lang/rust-clippy/pull/5811) * Detect more cases of [`suboptimal_flops`] and [`imprecise_flops`] [#5443](https://github.com/rust-lang/rust-clippy/pull/5443) * Handle asymmetrical implementations of `PartialEq` in [`cmp_owned`] [#5701](https://github.com/rust-lang/rust-clippy/pull/5701) * Make it possible to allow [`unsafe_derive_deserialize`] [#5870](https://github.com/rust-lang/rust-clippy/pull/5870) * Catch `ord.min(a).max(b)` where a < b in [`min_max`] [#5871](https://github.com/rust-lang/rust-clippy/pull/5871) * Make [`clone_on_copy`] suggestion machine applicable [#5745](https://github.com/rust-lang/rust-clippy/pull/5745) * Enable [`len_zero`] on ranges now that `is_empty` is stable on them [#5961](https://github.com/rust-lang/rust-clippy/pull/5961) ### False Positive Fixes * Avoid triggering [`or_fun_call`] with const fns that take no arguments [#5889](https://github.com/rust-lang/rust-clippy/pull/5889) * Fix [`redundant_closure_call`] false positive for closures that have multiple calls [#5800](https://github.com/rust-lang/rust-clippy/pull/5800) * Don't lint cases involving `ManuallyDrop` in [`redundant_clone`] [#5824](https://github.com/rust-lang/rust-clippy/pull/5824) * Treat a single expression the same as a single statement in the 2nd arm of a match in [`single_match_else`] [#5771](https://github.com/rust-lang/rust-clippy/pull/5771) * Don't trigger [`unnested_or_patterns`] if the feature `or_patterns` is not enabled [#5758](https://github.com/rust-lang/rust-clippy/pull/5758) * Avoid linting if key borrows in [`unnecessary_sort_by`] [#5756](https://github.com/rust-lang/rust-clippy/pull/5756) * Consider `Try` impl for `Poll` when generating suggestions in [`try_err`] [#5857](https://github.com/rust-lang/rust-clippy/pull/5857) * Take input lifetimes into account in `manual_async_fn` [#5859](https://github.com/rust-lang/rust-clippy/pull/5859) * Fix multiple false positives in [`type_repetition_in_bounds`] and add a configuration option [#5761](https://github.com/rust-lang/rust-clippy/pull/5761) * Limit the [`suspicious_arithmetic_impl`] lint to one binary operation [#5820](https://github.com/rust-lang/rust-clippy/pull/5820) ### Suggestion Fixes/Improvements * Improve readability of [`shadow_unrelated`] suggestion by truncating the RHS snippet [#5788](https://github.com/rust-lang/rust-clippy/pull/5788) * Suggest `filter_map` instead of `flat_map` when mapping to `Option` in [`map_flatten`] [#5846](https://github.com/rust-lang/rust-clippy/pull/5846) * Ensure suggestion is shown correctly for long method call chains in [`iter_nth_zero`] [#5793](https://github.com/rust-lang/rust-clippy/pull/5793) * Drop borrow operator in suggestions of [`redundant_pattern_matching`] [#5815](https://github.com/rust-lang/rust-clippy/pull/5815) * Add suggestion for [`iter_skip_next`] [#5843](https://github.com/rust-lang/rust-clippy/pull/5843) * Improve [`collapsible_if`] fix suggestion [#5732](https://github.com/rust-lang/rust-clippy/pull/5732) ### ICE Fixes * Fix ICE caused by [`needless_collect`] [#5877](https://github.com/rust-lang/rust-clippy/pull/5877) * Fix ICE caused by [`unnested_or_patterns`] [#5784](https://github.com/rust-lang/rust-clippy/pull/5784) ### Documentation Improvements * Fix grammar of [`await_holding_lock`] documentation [#5748](https://github.com/rust-lang/rust-clippy/pull/5748) ### Others * Make lints adhere to the rustc dev guide [#5888](https://github.com/rust-lang/rust-clippy/pull/5888) ## Rust 1.46 Released 2020-08-27 [View all 48 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2020-05-31T12%3A50%3A53Z..2020-06-23T15%3A00%3A32Z+base%3Amaster) ### New lints * [`unnested_or_patterns`] [#5378](https://github.com/rust-lang/rust-clippy/pull/5378) * [`iter_next_slice`] [#5597](https://github.com/rust-lang/rust-clippy/pull/5597) * [`unnecessary_sort_by`] [#5623](https://github.com/rust-lang/rust-clippy/pull/5623) * [`vec_resize_to_zero`] [#5637](https://github.com/rust-lang/rust-clippy/pull/5637) ### Moves and Deprecations * Move [`cast_ptr_alignment`] to pedantic [#5667](https://github.com/rust-lang/rust-clippy/pull/5667) ### Enhancements * Improve [`mem_replace_with_uninit`] lint [#5695](https://github.com/rust-lang/rust-clippy/pull/5695) ### False Positive Fixes * [`len_zero`]: Avoid linting ranges when the `range_is_empty` feature is not enabled [#5656](https://github.com/rust-lang/rust-clippy/pull/5656) * [`let_and_return`]: Don't lint if a temporary borrow is involved [#5680](https://github.com/rust-lang/rust-clippy/pull/5680) * [`reversed_empty_ranges`]: Avoid linting `N..N` in for loop arguments in [#5692](https://github.com/rust-lang/rust-clippy/pull/5692) * [`if_same_then_else`]: Don't assume multiplication is always commutative [#5702](https://github.com/rust-lang/rust-clippy/pull/5702) * [`disallowed_names`]: Remove `bar` from the default configuration [#5712](https://github.com/rust-lang/rust-clippy/pull/5712) * [`redundant_pattern_matching`]: Avoid suggesting non-`const fn` calls in const contexts [#5724](https://github.com/rust-lang/rust-clippy/pull/5724) ### Suggestion Fixes/Improvements * Fix suggestion of [`unit_arg`] lint, so that it suggest semantic equivalent code [#4455](https://github.com/rust-lang/rust-clippy/pull/4455) * Add auto applicable suggestion to [`macro_use_imports`] [#5279](https://github.com/rust-lang/rust-clippy/pull/5279) ### ICE Fixes * Fix ICE in the `consts` module of Clippy [#5709](https://github.com/rust-lang/rust-clippy/pull/5709) ### Documentation Improvements * Improve code examples across multiple lints [#5664](https://github.com/rust-lang/rust-clippy/pull/5664) ### Others * Introduce a `--rustc` flag to `clippy-driver`, which turns `clippy-driver` into `rustc` and passes all the given arguments to `rustc`. This is especially useful for tools that need the `rustc` version Clippy was compiled with, instead of the Clippy version. E.g. `clippy-driver --rustc --version` will print the output of `rustc --version`. [#5178](https://github.com/rust-lang/rust-clippy/pull/5178) * New issue templates now make it easier to complain if Clippy is too annoying or not annoying enough! [#5735](https://github.com/rust-lang/rust-clippy/pull/5735) ## Rust 1.45 Released 2020-07-16 [View all 81 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2020-04-18T20%3A18%3A04Z..2020-05-27T19%3A25%3A04Z+base%3Amaster) ### New lints * [`match_wildcard_for_single_variants`] [#5582](https://github.com/rust-lang/rust-clippy/pull/5582) * [`unsafe_derive_deserialize`] [#5493](https://github.com/rust-lang/rust-clippy/pull/5493) * [`if_let_mutex`] [#5332](https://github.com/rust-lang/rust-clippy/pull/5332) * [`mismatched_target_os`] [#5506](https://github.com/rust-lang/rust-clippy/pull/5506) * [`await_holding_lock`] [#5439](https://github.com/rust-lang/rust-clippy/pull/5439) * [`match_on_vec_items`] [#5522](https://github.com/rust-lang/rust-clippy/pull/5522) * [`manual_async_fn`] [#5576](https://github.com/rust-lang/rust-clippy/pull/5576) * [`reversed_empty_ranges`] [#5583](https://github.com/rust-lang/rust-clippy/pull/5583) * [`manual_non_exhaustive`] [#5550](https://github.com/rust-lang/rust-clippy/pull/5550) ### Moves and Deprecations * Downgrade [`match_bool`] to pedantic [#5408](https://github.com/rust-lang/rust-clippy/pull/5408) * Downgrade [`match_wild_err_arm`] to pedantic and update help messages. [#5622](https://github.com/rust-lang/rust-clippy/pull/5622) * Downgrade [`useless_let_if_seq`] to nursery. [#5599](https://github.com/rust-lang/rust-clippy/pull/5599) * Generalize `option_and_then_some` and rename to [`bind_instead_of_map`]. [#5529](https://github.com/rust-lang/rust-clippy/pull/5529) * Rename `identity_conversion` to [`useless_conversion`]. [#5568](https://github.com/rust-lang/rust-clippy/pull/5568) * Merge `block_in_if_condition_expr` and `block_in_if_condition_stmt` into [`blocks_in_if_conditions`]. [#5563](https://github.com/rust-lang/rust-clippy/pull/5563) * Merge `option_map_unwrap_or`, `option_map_unwrap_or_else` and `result_map_unwrap_or_else` into [`map_unwrap_or`]. [#5563](https://github.com/rust-lang/rust-clippy/pull/5563) * Merge `option_unwrap_used` and `result_unwrap_used` into [`unwrap_used`]. [#5563](https://github.com/rust-lang/rust-clippy/pull/5563) * Merge `option_expect_used` and `result_expect_used` into [`expect_used`]. [#5563](https://github.com/rust-lang/rust-clippy/pull/5563) * Merge `for_loop_over_option` and `for_loop_over_result` into [`for_loops_over_fallibles`]. [#5563](https://github.com/rust-lang/rust-clippy/pull/5563) ### Enhancements * Avoid running cargo lints when not enabled to improve performance. [#5505](https://github.com/rust-lang/rust-clippy/pull/5505) * Extend [`useless_conversion`] with `TryFrom` and `TryInto`. [#5631](https://github.com/rust-lang/rust-clippy/pull/5631) * Lint also in type parameters and where clauses in [`unused_unit`]. [#5592](https://github.com/rust-lang/rust-clippy/pull/5592) * Do not suggest deriving `Default` in [`new_without_default`]. [#5616](https://github.com/rust-lang/rust-clippy/pull/5616) ### False Positive Fixes * [`while_let_on_iterator`] [#5525](https://github.com/rust-lang/rust-clippy/pull/5525) * [`empty_line_after_outer_attr`] [#5609](https://github.com/rust-lang/rust-clippy/pull/5609) * [`unnecessary_unwrap`] [#5558](https://github.com/rust-lang/rust-clippy/pull/5558) * [`comparison_chain`] [#5596](https://github.com/rust-lang/rust-clippy/pull/5596) * Don't trigger [`used_underscore_binding`] in await desugaring. [#5535](https://github.com/rust-lang/rust-clippy/pull/5535) * Don't trigger [`borrowed_box`] on mutable references. [#5491](https://github.com/rust-lang/rust-clippy/pull/5491) * Allow `1 << 0` in [`identity_op`]. [#5602](https://github.com/rust-lang/rust-clippy/pull/5602) * Allow `use super::*;` glob imports in [`wildcard_imports`]. [#5564](https://github.com/rust-lang/rust-clippy/pull/5564) * Whitelist more words in [`doc_markdown`]. [#5611](https://github.com/rust-lang/rust-clippy/pull/5611) * Skip dev and build deps in [`multiple_crate_versions`]. [#5636](https://github.com/rust-lang/rust-clippy/pull/5636) * Honor `allow` attribute on arguments in [`ptr_arg`]. [#5647](https://github.com/rust-lang/rust-clippy/pull/5647) * Honor lint level attributes for [`redundant_field_names`], [`just_underscores_and_digits`], [`many_single_char_names`] and [`similar_names`]. [#5651](https://github.com/rust-lang/rust-clippy/pull/5651) * Ignore calls to `len` in [`or_fun_call`]. [#4429](https://github.com/rust-lang/rust-clippy/pull/4429) ### Suggestion Improvements * Simplify suggestions in [`manual_memcpy`]. [#5536](https://github.com/rust-lang/rust-clippy/pull/5536) * Fix suggestion in [`redundant_pattern_matching`] for macros. [#5511](https://github.com/rust-lang/rust-clippy/pull/5511) * Avoid suggesting `copied()` for mutable references in [`map_clone`]. [#5530](https://github.com/rust-lang/rust-clippy/pull/5530) * Improve help message for [`clone_double_ref`]. [#5547](https://github.com/rust-lang/rust-clippy/pull/5547) ### ICE Fixes * Fix ICE caused in unwrap module. [#5590](https://github.com/rust-lang/rust-clippy/pull/5590) * Fix ICE on rustc test issue-69020-assoc-const-arith-overflow.rs [#5499](https://github.com/rust-lang/rust-clippy/pull/5499) ### Documentation * Clarify the documentation of [`unnecessary_mut_passed`]. [#5639](https://github.com/rust-lang/rust-clippy/pull/5639) * Extend example for [`unneeded_field_pattern`]. [#5541](https://github.com/rust-lang/rust-clippy/pull/5541) ## Rust 1.44 Released 2020-06-04 [View all 124 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2020-03-05T17%3A30%3A53Z..2020-04-18T09%3A20%3A51Z+base%3Amaster) ### New lints * [`explicit_deref_methods`] [#5226](https://github.com/rust-lang/rust-clippy/pull/5226) * [`implicit_saturating_sub`] [#5427](https://github.com/rust-lang/rust-clippy/pull/5427) * [`macro_use_imports`] [#5230](https://github.com/rust-lang/rust-clippy/pull/5230) * [`verbose_file_reads`] [#5272](https://github.com/rust-lang/rust-clippy/pull/5272) * [`future_not_send`] [#5423](https://github.com/rust-lang/rust-clippy/pull/5423) * [`redundant_pub_crate`] [#5319](https://github.com/rust-lang/rust-clippy/pull/5319) * [`large_const_arrays`] [#5248](https://github.com/rust-lang/rust-clippy/pull/5248) * [`result_map_or_into_option`] [#5415](https://github.com/rust-lang/rust-clippy/pull/5415) * [`redundant_allocation`] [#5349](https://github.com/rust-lang/rust-clippy/pull/5349) * [`fn_address_comparisons`] [#5294](https://github.com/rust-lang/rust-clippy/pull/5294) * [`vtable_address_comparisons`] [#5294](https://github.com/rust-lang/rust-clippy/pull/5294) ### Moves and Deprecations * Deprecate [`replace_consts`] lint [#5380](https://github.com/rust-lang/rust-clippy/pull/5380) * Move [`cognitive_complexity`] to nursery [#5428](https://github.com/rust-lang/rust-clippy/pull/5428) * Move [`useless_transmute`] to nursery [#5364](https://github.com/rust-lang/rust-clippy/pull/5364) * Downgrade [`inefficient_to_string`] to pedantic [#5412](https://github.com/rust-lang/rust-clippy/pull/5412) * Downgrade [`option_option`] to pedantic [#5401](https://github.com/rust-lang/rust-clippy/pull/5401) * Downgrade [`unreadable_literal`] to pedantic [#5419](https://github.com/rust-lang/rust-clippy/pull/5419) * Downgrade [`let_unit_value`] to pedantic [#5409](https://github.com/rust-lang/rust-clippy/pull/5409) * Downgrade [`trivially_copy_pass_by_ref`] to pedantic [#5410](https://github.com/rust-lang/rust-clippy/pull/5410) * Downgrade [`implicit_hasher`] to pedantic [#5411](https://github.com/rust-lang/rust-clippy/pull/5411) ### Enhancements * On _nightly_ you can now use `cargo clippy --fix -Z unstable-options` to auto-fix lints that support this [#5363](https://github.com/rust-lang/rust-clippy/pull/5363) * Make [`redundant_clone`] also trigger on cases where the cloned value is not consumed. [#5304](https://github.com/rust-lang/rust-clippy/pull/5304) * Expand [`integer_arithmetic`] to also disallow bit-shifting [#5430](https://github.com/rust-lang/rust-clippy/pull/5430) * [`option_as_ref_deref`] now detects more deref cases [#5425](https://github.com/rust-lang/rust-clippy/pull/5425) * [`large_enum_variant`] now report the sizes of the largest and second-largest variants [#5466](https://github.com/rust-lang/rust-clippy/pull/5466) * [`bool_comparison`] now also checks for inequality comparisons that can be written more concisely [#5365](https://github.com/rust-lang/rust-clippy/pull/5365) * Expand [`clone_on_copy`] to work in method call arguments as well [#5441](https://github.com/rust-lang/rust-clippy/pull/5441) * [`redundant_pattern_matching`] now also handles `while let` [#5483](https://github.com/rust-lang/rust-clippy/pull/5483) * [`integer_arithmetic`] now also lints references of integers [#5329](https://github.com/rust-lang/rust-clippy/pull/5329) * Expand [`float_cmp_const`] to also work on arrays [#5345](https://github.com/rust-lang/rust-clippy/pull/5345) * Trigger [`map_flatten`] when map is called on an `Option` [#5473](https://github.com/rust-lang/rust-clippy/pull/5473) ### False Positive Fixes * [`many_single_char_names`] [#5468](https://github.com/rust-lang/rust-clippy/pull/5468) * [`should_implement_trait`] [#5437](https://github.com/rust-lang/rust-clippy/pull/5437) * [`unused_self`] [#5387](https://github.com/rust-lang/rust-clippy/pull/5387) * [`redundant_clone`] [#5453](https://github.com/rust-lang/rust-clippy/pull/5453) * [`precedence`] [#5445](https://github.com/rust-lang/rust-clippy/pull/5445) * [`suspicious_op_assign_impl`] [#5424](https://github.com/rust-lang/rust-clippy/pull/5424) * [`needless_lifetimes`] [#5293](https://github.com/rust-lang/rust-clippy/pull/5293) * [`redundant_pattern`] [#5287](https://github.com/rust-lang/rust-clippy/pull/5287) * [`inconsistent_digit_grouping`] [#5451](https://github.com/rust-lang/rust-clippy/pull/5451) ### Suggestion Improvements * Improved [`question_mark`] lint suggestion so that it doesn't add redundant `as_ref()` [#5481](https://github.com/rust-lang/rust-clippy/pull/5481) * Improve the suggested placeholder in [`option_map_unit_fn`] [#5292](https://github.com/rust-lang/rust-clippy/pull/5292) * Improve suggestion for [`match_single_binding`] when triggered inside a closure [#5350](https://github.com/rust-lang/rust-clippy/pull/5350) ### ICE Fixes * Handle the unstable `trivial_bounds` feature [#5296](https://github.com/rust-lang/rust-clippy/pull/5296) * `shadow_*` lints [#5297](https://github.com/rust-lang/rust-clippy/pull/5297) ### Documentation * Fix documentation generation for configurable lints [#5353](https://github.com/rust-lang/rust-clippy/pull/5353) * Update documentation for [`new_ret_no_self`] [#5448](https://github.com/rust-lang/rust-clippy/pull/5448) * The documentation for [`option_option`] now suggest using a tri-state enum [#5403](https://github.com/rust-lang/rust-clippy/pull/5403) * Fix bit mask example in [`verbose_bit_mask`] documentation [#5454](https://github.com/rust-lang/rust-clippy/pull/5454) * [`wildcard_imports`] documentation now mentions that `use ...::prelude::*` is not linted [#5312](https://github.com/rust-lang/rust-clippy/pull/5312) ## Rust 1.43 Released 2020-04-23 [View all 91 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2020-01-26T16%3A01%3A11Z..2020-03-04T16%3A45%3A37Z+base%3Amaster) ### New lints * [`imprecise_flops`] [#4897](https://github.com/rust-lang/rust-clippy/pull/4897) * [`suboptimal_flops`] [#4897](https://github.com/rust-lang/rust-clippy/pull/4897) * [`wildcard_imports`] [#5029](https://github.com/rust-lang/rust-clippy/pull/5029) * [`single_component_path_imports`] [#5058](https://github.com/rust-lang/rust-clippy/pull/5058) * [`match_single_binding`] [#5061](https://github.com/rust-lang/rust-clippy/pull/5061) * [`let_underscore_lock`] [#5101](https://github.com/rust-lang/rust-clippy/pull/5101) * [`struct_excessive_bools`] [#5125](https://github.com/rust-lang/rust-clippy/pull/5125) * [`fn_params_excessive_bools`] [#5125](https://github.com/rust-lang/rust-clippy/pull/5125) * [`option_env_unwrap`] [#5148](https://github.com/rust-lang/rust-clippy/pull/5148) * [`lossy_float_literal`] [#5202](https://github.com/rust-lang/rust-clippy/pull/5202) * [`rest_pat_in_fully_bound_structs`] [#5258](https://github.com/rust-lang/rust-clippy/pull/5258) ### Moves and Deprecations * Move [`unneeded_field_pattern`] to pedantic group [#5200](https://github.com/rust-lang/rust-clippy/pull/5200) ### Enhancements * Make [`missing_errors_doc`] lint also trigger on `async` functions [#5181](https://github.com/rust-lang/rust-clippy/pull/5181) * Add more constants to [`approx_constant`] [#5193](https://github.com/rust-lang/rust-clippy/pull/5193) * Extend [`question_mark`] lint [#5266](https://github.com/rust-lang/rust-clippy/pull/5266) ### False Positive Fixes * [`use_debug`] [#5047](https://github.com/rust-lang/rust-clippy/pull/5047) * [`unnecessary_unwrap`] [#5132](https://github.com/rust-lang/rust-clippy/pull/5132) * [`zero_prefixed_literal`] [#5170](https://github.com/rust-lang/rust-clippy/pull/5170) * [`missing_const_for_fn`] [#5216](https://github.com/rust-lang/rust-clippy/pull/5216) ### Suggestion Improvements * Improve suggestion when blocks of code are suggested [#5134](https://github.com/rust-lang/rust-clippy/pull/5134) ### ICE Fixes * `misc_early` lints [#5129](https://github.com/rust-lang/rust-clippy/pull/5129) * [`missing_errors_doc`] [#5213](https://github.com/rust-lang/rust-clippy/pull/5213) * Fix ICE when evaluating `usize`s [#5256](https://github.com/rust-lang/rust-clippy/pull/5256) ### Documentation * Improve documentation of [`iter_nth_zero`] * Add documentation pages for stable releases [#5171](https://github.com/rust-lang/rust-clippy/pull/5171) ### Others * Clippy now completely runs on GitHub Actions [#5190](https://github.com/rust-lang/rust-clippy/pull/5190) ## Rust 1.42 Released 2020-03-12 [View all 101 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2019-12-15T01%3A40%3A34Z..2020-01-26T11%3A22%3A13Z+base%3Amaster) ### New lints * [`filetype_is_file`] [#4543](https://github.com/rust-lang/rust-clippy/pull/4543) * [`let_underscore_must_use`] [#4823](https://github.com/rust-lang/rust-clippy/pull/4823) * [`modulo_arithmetic`] [#4867](https://github.com/rust-lang/rust-clippy/pull/4867) * [`mem_replace_with_default`] [#4881](https://github.com/rust-lang/rust-clippy/pull/4881) * [`mutable_key_type`] [#4885](https://github.com/rust-lang/rust-clippy/pull/4885) * [`option_as_ref_deref`] [#4945](https://github.com/rust-lang/rust-clippy/pull/4945) * [`wildcard_in_or_patterns`] [#4960](https://github.com/rust-lang/rust-clippy/pull/4960) * [`iter_nth_zero`] [#4966](https://github.com/rust-lang/rust-clippy/pull/4966) * `invalid_atomic_ordering` [#4999](https://github.com/rust-lang/rust-clippy/pull/4999) * [`skip_while_next`] [#5067](https://github.com/rust-lang/rust-clippy/pull/5067) ### Moves and Deprecations * Move [`transmute_float_to_int`] from nursery to complexity group [#5015](https://github.com/rust-lang/rust-clippy/pull/5015) * Move [`range_plus_one`] to pedantic group [#5057](https://github.com/rust-lang/rust-clippy/pull/5057) * Move [`debug_assert_with_mut_call`] to nursery group [#5106](https://github.com/rust-lang/rust-clippy/pull/5106) * Deprecate `unused_label` [#4930](https://github.com/rust-lang/rust-clippy/pull/4930) ### Enhancements * Lint vectored IO in [`unused_io_amount`] [#5027](https://github.com/rust-lang/rust-clippy/pull/5027) * Make [`vec_box`] configurable by adding a size threshold [#5081](https://github.com/rust-lang/rust-clippy/pull/5081) * Also lint constants in [`cmp_nan`] [#4910](https://github.com/rust-lang/rust-clippy/pull/4910) * Fix false negative in [`expect_fun_call`] [#4915](https://github.com/rust-lang/rust-clippy/pull/4915) * Fix false negative in [`redundant_clone`] [#5017](https://github.com/rust-lang/rust-clippy/pull/5017) ### False Positive Fixes * [`map_clone`] [#4937](https://github.com/rust-lang/rust-clippy/pull/4937) * [`replace_consts`] [#4977](https://github.com/rust-lang/rust-clippy/pull/4977) * [`let_and_return`] [#5008](https://github.com/rust-lang/rust-clippy/pull/5008) * [`eq_op`] [#5079](https://github.com/rust-lang/rust-clippy/pull/5079) * [`possible_missing_comma`] [#5083](https://github.com/rust-lang/rust-clippy/pull/5083) * [`debug_assert_with_mut_call`] [#5106](https://github.com/rust-lang/rust-clippy/pull/5106) * Don't trigger [`let_underscore_must_use`] in external macros [#5082](https://github.com/rust-lang/rust-clippy/pull/5082) * Don't trigger [`empty_loop`] in `no_std` crates [#5086](https://github.com/rust-lang/rust-clippy/pull/5086) ### Suggestion Improvements * `option_map_unwrap_or` [#4634](https://github.com/rust-lang/rust-clippy/pull/4634) * [`wildcard_enum_match_arm`] [#4934](https://github.com/rust-lang/rust-clippy/pull/4934) * [`cognitive_complexity`] [#4935](https://github.com/rust-lang/rust-clippy/pull/4935) * [`decimal_literal_representation`] [#4956](https://github.com/rust-lang/rust-clippy/pull/4956) * `unknown_clippy_lints` [#4963](https://github.com/rust-lang/rust-clippy/pull/4963) * [`explicit_into_iter_loop`] [#4978](https://github.com/rust-lang/rust-clippy/pull/4978) * [`useless_attribute`] [#5022](https://github.com/rust-lang/rust-clippy/pull/5022) * `if_let_some_result` [#5032](https://github.com/rust-lang/rust-clippy/pull/5032) ### ICE fixes * [`unsound_collection_transmute`] [#4975](https://github.com/rust-lang/rust-clippy/pull/4975) ### Documentation * Improve documentation of [`empty_enum`], [`replace_consts`], [`redundant_clone`], and [`iterator_step_by_zero`] ## Rust 1.41 Released 2020-01-30 [View all 74 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2019-10-28T20%3A50%3A24Z..2019-12-12T00%3A53%3A03Z+base%3Amaster) * New Lints: * [`exit`] [#4697](https://github.com/rust-lang/rust-clippy/pull/4697) * [`to_digit_is_some`] [#4801](https://github.com/rust-lang/rust-clippy/pull/4801) * [`tabs_in_doc_comments`] [#4806](https://github.com/rust-lang/rust-clippy/pull/4806) * [`large_stack_arrays`] [#4807](https://github.com/rust-lang/rust-clippy/pull/4807) * [`same_functions_in_if_condition`] [#4814](https://github.com/rust-lang/rust-clippy/pull/4814) * [`zst_offset`] [#4816](https://github.com/rust-lang/rust-clippy/pull/4816) * [`as_conversions`] [#4821](https://github.com/rust-lang/rust-clippy/pull/4821) * [`missing_errors_doc`] [#4884](https://github.com/rust-lang/rust-clippy/pull/4884) * [`transmute_float_to_int`] [#4889](https://github.com/rust-lang/rust-clippy/pull/4889) * Remove plugin interface, see [Inside Rust Blog](https://blog.rust-lang.org/inside-rust/2019/11/04/Clippy-removes-plugin-interface.html) for details [#4714](https://github.com/rust-lang/rust-clippy/pull/4714) * Move [`use_self`] to nursery group [#4863](https://github.com/rust-lang/rust-clippy/pull/4863) * Deprecate `into_iter_on_array` [#4788](https://github.com/rust-lang/rust-clippy/pull/4788) * Expand [`string_lit_as_bytes`] to also trigger when literal has escapes [#4808](https://github.com/rust-lang/rust-clippy/pull/4808) * Fix false positive in `comparison_chain` [#4842](https://github.com/rust-lang/rust-clippy/pull/4842) * Fix false positive in `while_immutable_condition` [#4730](https://github.com/rust-lang/rust-clippy/pull/4730) * Fix false positive in `explicit_counter_loop` [#4803](https://github.com/rust-lang/rust-clippy/pull/4803) * Fix false positive in `must_use_candidate` [#4794](https://github.com/rust-lang/rust-clippy/pull/4794) * Fix false positive in `print_with_newline` and `write_with_newline` [#4769](https://github.com/rust-lang/rust-clippy/pull/4769) * Fix false positive in `derive_hash_xor_eq` [#4766](https://github.com/rust-lang/rust-clippy/pull/4766) * Fix false positive in `missing_inline_in_public_items` [#4870](https://github.com/rust-lang/rust-clippy/pull/4870) * Fix false positive in `string_add` [#4880](https://github.com/rust-lang/rust-clippy/pull/4880) * Fix false positive in `float_arithmetic` [#4851](https://github.com/rust-lang/rust-clippy/pull/4851) * Fix false positive in `cast_sign_loss` [#4883](https://github.com/rust-lang/rust-clippy/pull/4883) * Fix false positive in `manual_swap` [#4877](https://github.com/rust-lang/rust-clippy/pull/4877) * Fix ICEs occurring while checking some block expressions [#4772](https://github.com/rust-lang/rust-clippy/pull/4772) * Fix ICE in `use_self` [#4776](https://github.com/rust-lang/rust-clippy/pull/4776) * Fix ICEs related to `const_generics` [#4780](https://github.com/rust-lang/rust-clippy/pull/4780) * Display help when running `clippy-driver` without arguments, instead of ICEing [#4810](https://github.com/rust-lang/rust-clippy/pull/4810) * Clippy has its own ICE message now [#4588](https://github.com/rust-lang/rust-clippy/pull/4588) * Show deprecated lints in the documentation again [#4757](https://github.com/rust-lang/rust-clippy/pull/4757) * Improve Documentation by adding positive examples to some lints [#4832](https://github.com/rust-lang/rust-clippy/pull/4832) ## Rust 1.40 Released 2019-12-19 [View all 76 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2019-09-23T06%3A18%3A04Z..2019-10-28T17%3A34%3A55Z+base%3Amaster) * New Lints: * [`unneeded_wildcard_pattern`] [#4537](https://github.com/rust-lang/rust-clippy/pull/4537) * [`needless_doctest_main`] [#4603](https://github.com/rust-lang/rust-clippy/pull/4603) * [`suspicious_unary_op_formatting`] [#4615](https://github.com/rust-lang/rust-clippy/pull/4615) * [`debug_assert_with_mut_call`] [#4680](https://github.com/rust-lang/rust-clippy/pull/4680) * [`unused_self`] [#4619](https://github.com/rust-lang/rust-clippy/pull/4619) * [`inefficient_to_string`] [#4683](https://github.com/rust-lang/rust-clippy/pull/4683) * [`must_use_unit`] [#4560](https://github.com/rust-lang/rust-clippy/pull/4560) * [`must_use_candidate`] [#4560](https://github.com/rust-lang/rust-clippy/pull/4560) * [`double_must_use`] [#4560](https://github.com/rust-lang/rust-clippy/pull/4560) * [`comparison_chain`] [#4569](https://github.com/rust-lang/rust-clippy/pull/4569) * [`unsound_collection_transmute`] [#4592](https://github.com/rust-lang/rust-clippy/pull/4592) * [`panic`] [#4657](https://github.com/rust-lang/rust-clippy/pull/4657) * [`unreachable`] [#4657](https://github.com/rust-lang/rust-clippy/pull/4657) * [`todo`] [#4657](https://github.com/rust-lang/rust-clippy/pull/4657) * `option_expect_used` [#4657](https://github.com/rust-lang/rust-clippy/pull/4657) * `result_expect_used` [#4657](https://github.com/rust-lang/rust-clippy/pull/4657) * Move `redundant_clone` to perf group [#4509](https://github.com/rust-lang/rust-clippy/pull/4509) * Move `manual_mul_add` to nursery group [#4736](https://github.com/rust-lang/rust-clippy/pull/4736) * Expand `unit_cmp` to also work with `assert_eq!`, `debug_assert_eq!`, `assert_ne!` and `debug_assert_ne!` [#4613](https://github.com/rust-lang/rust-clippy/pull/4613) * Expand `integer_arithmetic` to also detect mutating arithmetic like `+=` [#4585](https://github.com/rust-lang/rust-clippy/pull/4585) * Fix false positive in `nonminimal_bool` [#4568](https://github.com/rust-lang/rust-clippy/pull/4568) * Fix false positive in `missing_safety_doc` [#4611](https://github.com/rust-lang/rust-clippy/pull/4611) * Fix false positive in `cast_sign_loss` [#4614](https://github.com/rust-lang/rust-clippy/pull/4614) * Fix false positive in `redundant_clone` [#4509](https://github.com/rust-lang/rust-clippy/pull/4509) * Fix false positive in `try_err` [#4721](https://github.com/rust-lang/rust-clippy/pull/4721) * Fix false positive in `toplevel_ref_arg` [#4570](https://github.com/rust-lang/rust-clippy/pull/4570) * Fix false positive in `multiple_inherent_impl` [#4593](https://github.com/rust-lang/rust-clippy/pull/4593) * Improve more suggestions and tests in preparation for the unstable `cargo fix --clippy` [#4575](https://github.com/rust-lang/rust-clippy/pull/4575) * Improve suggestion for `zero_ptr` [#4599](https://github.com/rust-lang/rust-clippy/pull/4599) * Improve suggestion for `explicit_counter_loop` [#4691](https://github.com/rust-lang/rust-clippy/pull/4691) * Improve suggestion for `mul_add` [#4602](https://github.com/rust-lang/rust-clippy/pull/4602) * Improve suggestion for `assertions_on_constants` [#4635](https://github.com/rust-lang/rust-clippy/pull/4635) * Fix ICE in `use_self` [#4671](https://github.com/rust-lang/rust-clippy/pull/4671) * Fix ICE when encountering const casts [#4590](https://github.com/rust-lang/rust-clippy/pull/4590) ## Rust 1.39 Released 2019-11-07 [View all 100 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2019-08-11T19%3A21%3A38Z..2019-09-22T12%3A07%3A39Z+base%3Amaster) * New Lints: * [`uninit_assumed_init`] [#4479](https://github.com/rust-lang/rust-clippy/pull/4479) * [`flat_map_identity`] [#4231](https://github.com/rust-lang/rust-clippy/pull/4231) * [`missing_safety_doc`] [#4535](https://github.com/rust-lang/rust-clippy/pull/4535) * [`mem_replace_with_uninit`] [#4511](https://github.com/rust-lang/rust-clippy/pull/4511) * [`suspicious_map`] [#4394](https://github.com/rust-lang/rust-clippy/pull/4394) * `option_and_then_some` [#4386](https://github.com/rust-lang/rust-clippy/pull/4386) * [`manual_saturating_arithmetic`] [#4498](https://github.com/rust-lang/rust-clippy/pull/4498) * Deprecate `unused_collect` lint. This is fully covered by rustc's `#[must_use]` on `collect` [#4348](https://github.com/rust-lang/rust-clippy/pull/4348) * Move `type_repetition_in_bounds` to pedantic group [#4403](https://github.com/rust-lang/rust-clippy/pull/4403) * Move `cast_lossless` to pedantic group [#4539](https://github.com/rust-lang/rust-clippy/pull/4539) * `temporary_cstring_as_ptr` now catches more cases [#4425](https://github.com/rust-lang/rust-clippy/pull/4425) * `use_self` now works in constructors, too [#4525](https://github.com/rust-lang/rust-clippy/pull/4525) * `cargo_common_metadata` now checks for license files [#4518](https://github.com/rust-lang/rust-clippy/pull/4518) * `cognitive_complexity` now includes the measured complexity in the warning message [#4469](https://github.com/rust-lang/rust-clippy/pull/4469) * Fix false positives in `block_in_if_*` lints [#4458](https://github.com/rust-lang/rust-clippy/pull/4458) * Fix false positive in `cast_lossless` [#4473](https://github.com/rust-lang/rust-clippy/pull/4473) * Fix false positive in `clone_on_copy` [#4411](https://github.com/rust-lang/rust-clippy/pull/4411) * Fix false positive in `deref_addrof` [#4487](https://github.com/rust-lang/rust-clippy/pull/4487) * Fix false positive in `too_many_lines` [#4490](https://github.com/rust-lang/rust-clippy/pull/4490) * Fix false positive in `new_ret_no_self` [#4365](https://github.com/rust-lang/rust-clippy/pull/4365) * Fix false positive in `manual_swap` [#4478](https://github.com/rust-lang/rust-clippy/pull/4478) * Fix false positive in `missing_const_for_fn` [#4450](https://github.com/rust-lang/rust-clippy/pull/4450) * Fix false positive in `extra_unused_lifetimes` [#4477](https://github.com/rust-lang/rust-clippy/pull/4477) * Fix false positive in `inherent_to_string` [#4460](https://github.com/rust-lang/rust-clippy/pull/4460) * Fix false positive in `map_entry` [#4495](https://github.com/rust-lang/rust-clippy/pull/4495) * Fix false positive in `unused_unit` [#4445](https://github.com/rust-lang/rust-clippy/pull/4445) * Fix false positive in `redundant_pattern` [#4489](https://github.com/rust-lang/rust-clippy/pull/4489) * Fix false positive in `wrong_self_convention` [#4369](https://github.com/rust-lang/rust-clippy/pull/4369) * Improve various suggestions and tests in preparation for the unstable `cargo fix --clippy` [#4558](https://github.com/rust-lang/rust-clippy/pull/4558) * Improve suggestions for `redundant_pattern_matching` [#4352](https://github.com/rust-lang/rust-clippy/pull/4352) * Improve suggestions for `explicit_write` [#4544](https://github.com/rust-lang/rust-clippy/pull/4544) * Improve suggestion for `or_fun_call` [#4522](https://github.com/rust-lang/rust-clippy/pull/4522) * Improve suggestion for `match_as_ref` [#4446](https://github.com/rust-lang/rust-clippy/pull/4446) * Improve suggestion for `unnecessary_fold_span` [#4382](https://github.com/rust-lang/rust-clippy/pull/4382) * Add suggestions for `unseparated_literal_suffix` [#4401](https://github.com/rust-lang/rust-clippy/pull/4401) * Add suggestions for `char_lit_as_u8` [#4418](https://github.com/rust-lang/rust-clippy/pull/4418) ## Rust 1.38 Released 2019-09-26 [View all 76 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2019-06-30T13%3A40%3A26Z..2019-08-11T09%3A47%3A27Z+base%3Amaster) * New Lints: * [`main_recursion`] [#4203](https://github.com/rust-lang/rust-clippy/pull/4203) * [`inherent_to_string`] [#4259](https://github.com/rust-lang/rust-clippy/pull/4259) * [`inherent_to_string_shadow_display`] [#4259](https://github.com/rust-lang/rust-clippy/pull/4259) * [`type_repetition_in_bounds`] [#3766](https://github.com/rust-lang/rust-clippy/pull/3766) * [`try_err`] [#4222](https://github.com/rust-lang/rust-clippy/pull/4222) * Move `{unnecessary,panicking}_unwrap` out of nursery [#4307](https://github.com/rust-lang/rust-clippy/pull/4307) * Extend the `use_self` lint to suggest uses of `Self::Variant` [#4308](https://github.com/rust-lang/rust-clippy/pull/4308) * Improve suggestion for needless return [#4262](https://github.com/rust-lang/rust-clippy/pull/4262) * Add auto-fixable suggestion for `let_unit` [#4337](https://github.com/rust-lang/rust-clippy/pull/4337) * Fix false positive in `pub_enum_variant_names` and `enum_variant_names` [#4345](https://github.com/rust-lang/rust-clippy/pull/4345) * Fix false positive in `cast_ptr_alignment` [#4257](https://github.com/rust-lang/rust-clippy/pull/4257) * Fix false positive in `string_lit_as_bytes` [#4233](https://github.com/rust-lang/rust-clippy/pull/4233) * Fix false positive in `needless_lifetimes` [#4266](https://github.com/rust-lang/rust-clippy/pull/4266) * Fix false positive in `float_cmp` [#4275](https://github.com/rust-lang/rust-clippy/pull/4275) * Fix false positives in `needless_return` [#4274](https://github.com/rust-lang/rust-clippy/pull/4274) * Fix false negative in `match_same_arms` [#4246](https://github.com/rust-lang/rust-clippy/pull/4246) * Fix incorrect suggestion for `needless_bool` [#4335](https://github.com/rust-lang/rust-clippy/pull/4335) * Improve suggestion for `cast_ptr_alignment` [#4257](https://github.com/rust-lang/rust-clippy/pull/4257) * Improve suggestion for `single_char_literal` [#4361](https://github.com/rust-lang/rust-clippy/pull/4361) * Improve suggestion for `len_zero` [#4314](https://github.com/rust-lang/rust-clippy/pull/4314) * Fix ICE in `implicit_hasher` [#4268](https://github.com/rust-lang/rust-clippy/pull/4268) * Fix allow bug in `trivially_copy_pass_by_ref` [#4250](https://github.com/rust-lang/rust-clippy/pull/4250) ## Rust 1.37 Released 2019-08-15 [View all 72 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2019-05-19T08%3A11%3A23Z..2019-06-25T23%3A22%3A22Z+base%3Amaster) * New Lints: * [`checked_conversions`] [#4088](https://github.com/rust-lang/rust-clippy/pull/4088) * [`get_last_with_len`] [#3832](https://github.com/rust-lang/rust-clippy/pull/3832) * [`integer_division`] [#4195](https://github.com/rust-lang/rust-clippy/pull/4195) * Renamed Lint: `const_static_lifetime` is now called [`redundant_static_lifetimes`]. The lint now covers statics in addition to consts [#4162](https://github.com/rust-lang/rust-clippy/pull/4162) * [`match_same_arms`] now warns for all identical arms, instead of only the first one [#4102](https://github.com/rust-lang/rust-clippy/pull/4102) * [`needless_return`] now works with void functions [#4220](https://github.com/rust-lang/rust-clippy/pull/4220) * Fix false positive in [`redundant_closure`] [#4190](https://github.com/rust-lang/rust-clippy/pull/4190) * Fix false positive in [`useless_attribute`] [#4107](https://github.com/rust-lang/rust-clippy/pull/4107) * Fix incorrect suggestion for [`float_cmp`] [#4214](https://github.com/rust-lang/rust-clippy/pull/4214) * Add suggestions for [`print_with_newline`] and [`write_with_newline`] [#4136](https://github.com/rust-lang/rust-clippy/pull/4136) * Improve suggestions for `option_map_unwrap_or_else` and `result_map_unwrap_or_else` [#4164](https://github.com/rust-lang/rust-clippy/pull/4164) * Improve suggestions for [`non_ascii_literal`] [#4119](https://github.com/rust-lang/rust-clippy/pull/4119) * Improve diagnostics for [`let_and_return`] [#4137](https://github.com/rust-lang/rust-clippy/pull/4137) * Improve diagnostics for [`trivially_copy_pass_by_ref`] [#4071](https://github.com/rust-lang/rust-clippy/pull/4071) * Add macro check for [`unreadable_literal`] [#4099](https://github.com/rust-lang/rust-clippy/pull/4099) ## Rust 1.36 Released 2019-07-04 [View all 81 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2019-04-10T09%3A41%3A56Z..2019-05-18T00%3A29%3A40Z+base%3Amaster) * New lints: [`find_map`], [`filter_map_next`] [#4039](https://github.com/rust-lang/rust-clippy/pull/4039) * New lint: [`path_buf_push_overwrite`] [#3954](https://github.com/rust-lang/rust-clippy/pull/3954) * Move `path_buf_push_overwrite` to the nursery [#4013](https://github.com/rust-lang/rust-clippy/pull/4013) * Split [`redundant_closure`] into [`redundant_closure`] and [`redundant_closure_for_method_calls`] [#4110](https://github.com/rust-lang/rust-clippy/pull/4101) * Allow allowing of [`toplevel_ref_arg`] lint [#4007](https://github.com/rust-lang/rust-clippy/pull/4007) * Fix false negative in [`or_fun_call`] pertaining to nested constructors [#4084](https://github.com/rust-lang/rust-clippy/pull/4084) * Fix false positive in [`or_fun_call`] pertaining to enum variant constructors [#4018](https://github.com/rust-lang/rust-clippy/pull/4018) * Fix false positive in [`useless_let_if_seq`] pertaining to interior mutability [#4035](https://github.com/rust-lang/rust-clippy/pull/4035) * Fix false positive in [`redundant_closure`] pertaining to non-function types [#4008](https://github.com/rust-lang/rust-clippy/pull/4008) * Fix false positive in [`let_and_return`] pertaining to attributes on `let`s [#4024](https://github.com/rust-lang/rust-clippy/pull/4024) * Fix false positive in [`module_name_repetitions`] lint pertaining to attributes [#4006](https://github.com/rust-lang/rust-clippy/pull/4006) * Fix false positive on [`assertions_on_constants`] pertaining to `debug_assert!` [#3989](https://github.com/rust-lang/rust-clippy/pull/3989) * Improve suggestion in [`map_clone`] to suggest `.copied()` where applicable [#3970](https://github.com/rust-lang/rust-clippy/pull/3970) [#4043](https://github.com/rust-lang/rust-clippy/pull/4043) * Improve suggestion for [`search_is_some`] [#4049](https://github.com/rust-lang/rust-clippy/pull/4049) * Improve suggestion applicability for [`naive_bytecount`] [#3984](https://github.com/rust-lang/rust-clippy/pull/3984) * Improve suggestion applicability for [`while_let_loop`] [#3975](https://github.com/rust-lang/rust-clippy/pull/3975) * Improve diagnostics for [`too_many_arguments`] [#4053](https://github.com/rust-lang/rust-clippy/pull/4053) * Improve diagnostics for [`cast_lossless`] [#4021](https://github.com/rust-lang/rust-clippy/pull/4021) * Deal with macro checks in desugarings better [#4082](https://github.com/rust-lang/rust-clippy/pull/4082) * Add macro check for [`unnecessary_cast`] [#4026](https://github.com/rust-lang/rust-clippy/pull/4026) * Remove [`approx_constant`]'s documentation's "Known problems" section. [#4027](https://github.com/rust-lang/rust-clippy/pull/4027) * Fix ICE in [`suspicious_else_formatting`] [#3960](https://github.com/rust-lang/rust-clippy/pull/3960) * Fix ICE in [`decimal_literal_representation`] [#3931](https://github.com/rust-lang/rust-clippy/pull/3931) ## Rust 1.35 Released 2019-05-20 [1fac380..37f5c1e](https://github.com/rust-lang/rust-clippy/compare/1fac380...37f5c1e) * New lint: `drop_bounds` to detect `T: Drop` bounds * Split [`redundant_closure`] into [`redundant_closure`] and [`redundant_closure_for_method_calls`] [#4110](https://github.com/rust-lang/rust-clippy/pull/4101) * Rename `cyclomatic_complexity` to [`cognitive_complexity`], start work on making lint more practical for Rust code * Move [`get_unwrap`] to the restriction category * Improve suggestions for [`iter_cloned_collect`] * Improve suggestions for [`cast_lossless`] to suggest suffixed literals * Fix false positives in [`print_with_newline`] and [`write_with_newline`] pertaining to raw strings * Fix false positive in [`needless_range_loop`] pertaining to structs without a `.iter()` * Fix false positive in [`bool_comparison`] pertaining to non-bool types * Fix false positive in [`redundant_closure`] pertaining to differences in borrows * Fix false positive in `option_map_unwrap_or` on non-copy types * Fix false positives in [`missing_const_for_fn`] pertaining to macros and trait method impls * Fix false positive in [`needless_pass_by_value`] pertaining to procedural macros * Fix false positive in [`needless_continue`] pertaining to loop labels * Fix false positive for [`boxed_local`] pertaining to arguments moved into closures * Fix false positive for [`use_self`] in nested functions * Fix suggestion for [`expect_fun_call`] (https://github.com/rust-lang/rust-clippy/pull/3846) * Fix suggestion for [`explicit_counter_loop`] to deal with parenthesizing range variables * Fix suggestion for [`single_char_pattern`] to correctly escape single quotes * Avoid triggering [`redundant_closure`] in macros * ICE fixes: [#3805](https://github.com/rust-lang/rust-clippy/pull/3805), [#3772](https://github.com/rust-lang/rust-clippy/pull/3772), [#3741](https://github.com/rust-lang/rust-clippy/pull/3741) ## Rust 1.34 Released 2019-04-10 [View all 61 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2019-01-17T17%3A45%3A39Z..2019-02-19T08%3A24%3A05Z+base%3Amaster) * New lint: [`assertions_on_constants`] to detect for example `assert!(true)` * New lint: [`dbg_macro`] to detect uses of the `dbg!` macro * New lint: [`missing_const_for_fn`] that can suggest functions to be made `const` * New lint: [`too_many_lines`] to detect functions with excessive LOC. It can be configured using the `too-many-lines-threshold` configuration. * New lint: [`wildcard_enum_match_arm`] to check for wildcard enum matches using `_` * Expand `redundant_closure` to also work for methods (not only functions) * Fix ICEs in `vec_box`, `needless_pass_by_value` and `implicit_hasher` * Fix false positive in `cast_sign_loss` * Fix false positive in `integer_arithmetic` * Fix false positive in `unit_arg` * Fix false positives in `implicit_return` * Add suggestion to `explicit_write` * Improve suggestions for `question_mark` lint * Fix incorrect suggestion for `cast_lossless` * Fix incorrect suggestion for `expect_fun_call` * Fix incorrect suggestion for `needless_bool` * Fix incorrect suggestion for `needless_range_loop` * Fix incorrect suggestion for `use_self` * Fix incorrect suggestion for `while_let_on_iterator` * Clippy is now slightly easier to invoke in non-cargo contexts. See [#3665][pull3665] for more details. * We now have [improved documentation][adding_lints] on how to add new lints ## Rust 1.33 Released 2019-02-26 [View all 120 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2018-11-28T06%3A19%3A50Z..2019-01-15T09%3A27%3A02Z+base%3Amaster) * New lints: [`implicit_return`], [`vec_box`], [`cast_ref_to_mut`] * The `rust-clippy` repository is now part of the `rust-lang` org. * Rename `stutter` to `module_name_repetitions` * Merge `new_without_default_derive` into `new_without_default` lint * Move `large_digit_groups` from `style` group to `pedantic` * Expand `bool_comparison` to check for `<`, `<=`, `>`, `>=`, and `!=` comparisons against booleans * Expand `no_effect` to detect writes to constants such as `A_CONST.field = 2` * Expand `redundant_clone` to work on struct fields * Expand `suspicious_else_formatting` to detect `if .. {..} {..}` * Expand `use_self` to work on tuple structs and also in local macros * Fix ICE in `result_map_unit_fn` and `option_map_unit_fn` * Fix false positives in `implicit_return` * Fix false positives in `use_self` * Fix false negative in `clone_on_copy` * Fix false positive in `doc_markdown` * Fix false positive in `empty_loop` * Fix false positive in `if_same_then_else` * Fix false positive in `infinite_iter` * Fix false positive in `question_mark` * Fix false positive in `useless_asref` * Fix false positive in `wildcard_dependencies` * Fix false positive in `write_with_newline` * Add suggestion to `explicit_write` * Improve suggestions for `question_mark` lint * Fix incorrect suggestion for `get_unwrap` ## Rust 1.32 Released 2019-01-17 [View all 71 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2018-10-24T05%3A02%3A21Z..2018-11-27T17%3A29%3A34Z+base%3Amaster) * New lints: [`slow_vector_initialization`], `mem_discriminant_non_enum`, [`redundant_clone`], [`wildcard_dependencies`], [`into_iter_on_ref`], `into_iter_on_array`, [`deprecated_cfg_attr`], [`cargo_common_metadata`] * Add support for `u128` and `i128` to integer related lints * Add float support to `mistyped_literal_suffixes` * Fix false positives in `use_self` * Fix false positives in `missing_comma` * Fix false positives in `new_ret_no_self` * Fix false positives in `possible_missing_comma` * Fix false positive in `integer_arithmetic` in constant items * Fix false positive in `needless_borrow` * Fix false positive in `out_of_bounds_indexing` * Fix false positive in `new_without_default_derive` * Fix false positive in `string_lit_as_bytes` * Fix false negative in `out_of_bounds_indexing` * Fix false negative in `use_self`. It will now also check existential types * Fix incorrect suggestion for `redundant_closure_call` * Fix various suggestions that contained expanded macros * Fix `bool_comparison` triggering 3 times on on on the same code * Expand `trivially_copy_pass_by_ref` to work on trait methods * Improve suggestion for `needless_range_loop` * Move `needless_pass_by_value` from `pedantic` group to `style` ## Rust 1.31 Released 2018-12-06 [125907ad..2e26fdc2](https://github.com/rust-lang/rust-clippy/compare/125907ad..2e26fdc2) * Clippy has been relicensed under a dual MIT / Apache license. See [#3093](https://github.com/rust-lang/rust-clippy/issues/3093) for more information. * With Rust 1.31, Clippy is no longer available via crates.io. The recommended installation method is via `rustup component add clippy`. * New lints: [`redundant_pattern_matching`], [`unnecessary_filter_map`], [`unused_unit`], [`map_flatten`], [`mem_replace_option_with_none`] * Fix ICE in `if_let_redundant_pattern_matching` * Fix ICE in `needless_pass_by_value` when encountering a generic function argument with a lifetime parameter * Fix ICE in `needless_range_loop` * Fix ICE in `single_char_pattern` when encountering a constant value * Fix false positive in `assign_op_pattern` * Fix false positive in `boxed_local` on trait implementations * Fix false positive in `cmp_owned` * Fix false positive in `collapsible_if` when conditionals have comments * Fix false positive in `double_parens` * Fix false positive in `excessive_precision` * Fix false positive in `explicit_counter_loop` * Fix false positive in `fn_to_numeric_cast_with_truncation` * Fix false positive in `map_clone` * Fix false positive in `new_ret_no_self` * Fix false positive in `new_without_default` when `new` is unsafe * Fix false positive in `type_complexity` when using extern types * Fix false positive in `useless_format` * Fix false positive in `wrong_self_convention` * Fix incorrect suggestion for `excessive_precision` * Fix incorrect suggestion for `expect_fun_call` * Fix incorrect suggestion for `get_unwrap` * Fix incorrect suggestion for `useless_format` * `fn_to_numeric_cast_with_truncation` lint can be disabled again * Improve suggestions for `manual_memcpy` * Improve help message for `needless_lifetimes` ## Rust 1.30 Released 2018-10-25 [View all 88 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2018-08-02T16%3A54%3A12Z..2018-09-17T09%3A44%3A06Z+base%3Amaster) * Deprecate `assign_ops` lint * New lints: [`mistyped_literal_suffixes`], [`ptr_offset_with_cast`], [`needless_collect`], [`copy_iterator`] * `cargo clippy -V` now includes the Clippy commit hash of the Rust Clippy component * Fix ICE in `implicit_hasher` * Fix ICE when encountering `println!("{}" a);` * Fix ICE when encountering a macro call in match statements * Fix false positive in `default_trait_access` * Fix false positive in `trivially_copy_pass_by_ref` * Fix false positive in `similar_names` * Fix false positive in `redundant_field_name` * Fix false positive in `expect_fun_call` * Fix false negative in `identity_conversion` * Fix false negative in `explicit_counter_loop` * Fix `range_plus_one` suggestion and false negative * `print_with_newline` / `write_with_newline`: don't warn about string with several `\n`s in them * Fix `useless_attribute` to also whitelist `unused_extern_crates` * Fix incorrect suggestion for `single_char_pattern` * Improve suggestion for `identity_conversion` lint * Move `explicit_iter_loop` and `explicit_into_iter_loop` from `style` group to `pedantic` * Move `range_plus_one` and `range_minus_one` from `nursery` group to `complexity` * Move `shadow_unrelated` from `restriction` group to `pedantic` * Move `indexing_slicing` from `pedantic` group to `restriction` ## Rust 1.29 Released 2018-09-13 [v0.0.212...14207503](https://github.com/rust-lang/rust-clippy/compare/v0.0.212...14207503) * :tada: :tada: **Rust 1.29 is the first stable Rust that includes a bundled Clippy** :tada: :tada: You can now run `rustup component add clippy-preview` and then `cargo clippy` to run Clippy. This should put an end to the continuous nightly upgrades for Clippy users. * Clippy now follows the Rust versioning scheme instead of its own * Fix ICE when encountering a `while let (..) = x.iter()` construct * Fix false positives in `use_self` * Fix false positive in `trivially_copy_pass_by_ref` * Fix false positive in `useless_attribute` lint * Fix false positive in `print_literal` * Fix `use_self` regressions * Improve lint message for `neg_cmp_op_on_partial_ord` * Improve suggestion highlight for `single_char_pattern` * Improve suggestions for various print/write macro lints * Improve website header ## 0.0.212 (2018-07-10) * Rustup to *rustc 1.29.0-nightly (e06c87544 2018-07-06)* ## 0.0.211 * Rustup to *rustc 1.28.0-nightly (e3bf634e0 2018-06-28)* ## 0.0.210 * Rustup to *rustc 1.28.0-nightly (01cc982e9 2018-06-24)* ## 0.0.209 * Rustup to *rustc 1.28.0-nightly (523097979 2018-06-18)* ## 0.0.208 * Rustup to *rustc 1.28.0-nightly (86a8f1a63 2018-06-17)* ## 0.0.207 * Rustup to *rustc 1.28.0-nightly (2a0062974 2018-06-09)* ## 0.0.206 * Rustup to *rustc 1.28.0-nightly (5bf68db6e 2018-05-28)* ## 0.0.205 * Rustup to *rustc 1.28.0-nightly (990d8aa74 2018-05-25)* * Rename `unused_lifetimes` to `extra_unused_lifetimes` because of naming conflict with new rustc lint ## 0.0.204 * Rustup to *rustc 1.28.0-nightly (71e87be38 2018-05-22)* ## 0.0.203 * Rustup to *rustc 1.28.0-nightly (a3085756e 2018-05-19)* * Clippy attributes are now of the form `clippy::cyclomatic_complexity` instead of `clippy(cyclomatic_complexity)` ## 0.0.202 * Rustup to *rustc 1.28.0-nightly (952f344cd 2018-05-18)* ## 0.0.201 * Rustup to *rustc 1.27.0-nightly (2f2a11dfc 2018-05-16)* ## 0.0.200 * Rustup to *rustc 1.27.0-nightly (9fae15374 2018-05-13)* ## 0.0.199 * Rustup to *rustc 1.27.0-nightly (ff2ac35db 2018-05-12)* ## 0.0.198 * Rustup to *rustc 1.27.0-nightly (acd3871ba 2018-05-10)* ## 0.0.197 * Rustup to *rustc 1.27.0-nightly (428ea5f6b 2018-05-06)* ## 0.0.196 * Rustup to *rustc 1.27.0-nightly (e82261dfb 2018-05-03)* ## 0.0.195 * Rustup to *rustc 1.27.0-nightly (ac3c2288f 2018-04-18)* ## 0.0.194 * Rustup to *rustc 1.27.0-nightly (bd40cbbe1 2018-04-14)* * New lints: [`cast_ptr_alignment`], [`transmute_ptr_to_ptr`], [`write_literal`], [`write_with_newline`], [`writeln_empty_string`] ## 0.0.193 * Rustup to *rustc 1.27.0-nightly (eeea94c11 2018-04-06)* ## 0.0.192 * Rustup to *rustc 1.27.0-nightly (fb44b4c0e 2018-04-04)* * New lint: [`print_literal`] ## 0.0.191 * Rustup to *rustc 1.26.0-nightly (ae544ee1c 2018-03-29)* * Lint audit; categorize lints as style, correctness, complexity, pedantic, nursery, restriction. ## 0.0.190 * Fix a bunch of intermittent cargo bugs ## 0.0.189 * Rustup to *rustc 1.26.0-nightly (5508b2714 2018-03-18)* ## 0.0.188 * Rustup to *rustc 1.26.0-nightly (392645394 2018-03-15)* * New lint: [`while_immutable_condition`] ## 0.0.187 * Rustup to *rustc 1.26.0-nightly (322d7f7b9 2018-02-25)* * New lints: [`redundant_field_names`], [`suspicious_arithmetic_impl`], [`suspicious_op_assign_impl`] ## 0.0.186 * Rustup to *rustc 1.25.0-nightly (0c6091fbd 2018-02-04)* * Various false positive fixes ## 0.0.185 * Rustup to *rustc 1.25.0-nightly (56733bc9f 2018-02-01)* * New lint: [`question_mark`] ## 0.0.184 * Rustup to *rustc 1.25.0-nightly (90eb44a58 2018-01-29)* * New lints: [`double_comparisons`], [`empty_line_after_outer_attr`] ## 0.0.183 * Rustup to *rustc 1.25.0-nightly (21882aad7 2018-01-28)* * New lint: [`misaligned_transmute`] ## 0.0.182 * Rustup to *rustc 1.25.0-nightly (a0dcecff9 2018-01-24)* * New lint: [`decimal_literal_representation`] ## 0.0.181 * Rustup to *rustc 1.25.0-nightly (97520ccb1 2018-01-21)* * New lints: [`else_if_without_else`], [`option_option`], [`unit_arg`], [`unnecessary_fold`] * Removed `unit_expr` * Various false positive fixes for [`needless_pass_by_value`] ## 0.0.180 * Rustup to *rustc 1.25.0-nightly (3f92e8d89 2018-01-14)* ## 0.0.179 * Rustup to *rustc 1.25.0-nightly (61452e506 2018-01-09)* ## 0.0.178 * Rustup to *rustc 1.25.0-nightly (ee220daca 2018-01-07)* ## 0.0.177 * Rustup to *rustc 1.24.0-nightly (250b49205 2017-12-21)* * New lint: [`match_as_ref`] ## 0.0.176 * Rustup to *rustc 1.24.0-nightly (0077d128d 2017-12-14)* ## 0.0.175 * Rustup to *rustc 1.24.0-nightly (bb42071f6 2017-12-01)* ## 0.0.174 * Rustup to *rustc 1.23.0-nightly (63739ab7b 2017-11-21)* ## 0.0.173 * Rustup to *rustc 1.23.0-nightly (33374fa9d 2017-11-20)* ## 0.0.172 * Rustup to *rustc 1.23.0-nightly (d0f8e2913 2017-11-16)* ## 0.0.171 * Rustup to *rustc 1.23.0-nightly (ff0f5de3b 2017-11-14)* ## 0.0.170 * Rustup to *rustc 1.23.0-nightly (d6b06c63a 2017-11-09)* ## 0.0.169 * Rustup to *rustc 1.23.0-nightly (3b82e4c74 2017-11-05)* * New lints: [`just_underscores_and_digits`], `result_map_unwrap_or_else`, [`transmute_bytes_to_str`] ## 0.0.168 * Rustup to *rustc 1.23.0-nightly (f0fe716db 2017-10-30)* ## 0.0.167 * Rustup to *rustc 1.23.0-nightly (90ef3372e 2017-10-29)* * New lints: `const_static_lifetime`, [`erasing_op`], [`fallible_impl_from`], [`println_empty_string`], [`useless_asref`] ## 0.0.166 * Rustup to *rustc 1.22.0-nightly (b7960878b 2017-10-18)* * New lints: [`explicit_write`], `identity_conversion`, [`implicit_hasher`], `invalid_ref`, [`option_map_or_none`], [`range_minus_one`], [`range_plus_one`], [`transmute_int_to_bool`], [`transmute_int_to_char`], [`transmute_int_to_float`] ## 0.0.165 * Rust upgrade to rustc 1.22.0-nightly (0e6f4cf51 2017-09-27) * New lint: [`mut_range_bound`] ## 0.0.164 * Update to *rustc 1.22.0-nightly (6c476ce46 2017-09-25)* * New lint: [`int_plus_one`] ## 0.0.163 * Update to *rustc 1.22.0-nightly (14039a42a 2017-09-22)* ## 0.0.162 * Update to *rustc 1.22.0-nightly (0701b37d9 2017-09-18)* * New lint: [`chars_last_cmp`] * Improved suggestions for [`needless_borrow`], [`ptr_arg`], ## 0.0.161 * Update to *rustc 1.22.0-nightly (539f2083d 2017-09-13)* ## 0.0.160 * Update to *rustc 1.22.0-nightly (dd08c3070 2017-09-12)* ## 0.0.159 * Update to *rustc 1.22.0-nightly (eba374fb2 2017-09-11)* * New lint: [`clone_on_ref_ptr`] ## 0.0.158 * New lint: [`manual_memcpy`] * [`cast_lossless`] no longer has redundant parentheses in its suggestions * Update to *rustc 1.22.0-nightly (dead08cb3 2017-09-08)* ## 0.0.157 - 2017-09-04 * Update to *rustc 1.22.0-nightly (981ce7d8d 2017-09-03)* * New lint: `unit_expr` ## 0.0.156 - 2017-09-03 * Update to *rustc 1.22.0-nightly (744dd6c1d 2017-09-02)* ## 0.0.155 * Update to *rustc 1.21.0-nightly (c11f689d2 2017-08-29)* * New lint: [`infinite_iter`], [`maybe_infinite_iter`], [`cast_lossless`] ## 0.0.154 * Update to *rustc 1.21.0-nightly (2c0558f63 2017-08-24)* * Fix [`use_self`] triggering inside derives * Add support for linting an entire workspace with `cargo clippy --all` * New lint: [`naive_bytecount`] ## 0.0.153 * Update to *rustc 1.21.0-nightly (8c303ed87 2017-08-20)* * New lint: [`use_self`] ## 0.0.152 * Update to *rustc 1.21.0-nightly (df511d554 2017-08-14)* ## 0.0.151 * Update to *rustc 1.21.0-nightly (13d94d5fa 2017-08-10)* ## 0.0.150 * Update to *rustc 1.21.0-nightly (215e0b10e 2017-08-08)* ## 0.0.148 * Update to *rustc 1.21.0-nightly (37c7d0ebb 2017-07-31)* * New lints: [`unreadable_literal`], [`inconsistent_digit_grouping`], [`large_digit_groups`] ## 0.0.147 * Update to *rustc 1.21.0-nightly (aac223f4f 2017-07-30)* ## 0.0.146 * Update to *rustc 1.21.0-nightly (52a330969 2017-07-27)* * Fixes false positives in `inline_always` * Fixes false negatives in `panic_params` ## 0.0.145 * Update to *rustc 1.20.0-nightly (afe145d22 2017-07-23)* ## 0.0.144 * Update to *rustc 1.20.0-nightly (086eaa78e 2017-07-15)* ## 0.0.143 * Update to *rustc 1.20.0-nightly (d84693b93 2017-07-09)* * Fix `cargo clippy` crashing on `dylib` projects * Fix false positives around `nested_while_let` and `never_loop` ## 0.0.142 * Update to *rustc 1.20.0-nightly (067971139 2017-07-02)* ## 0.0.141 * Rewrite of the `doc_markdown` lint. * Deprecated [`range_step_by_zero`] * New lint: [`iterator_step_by_zero`] * New lint: [`needless_borrowed_reference`] * Update to *rustc 1.20.0-nightly (69c65d296 2017-06-28)* ## 0.0.140 - 2017-06-16 * Update to *rustc 1.19.0-nightly (258ae6dd9 2017-06-15)* ## 0.0.139 — 2017-06-10 * Update to *rustc 1.19.0-nightly (4bf5c99af 2017-06-10)* * Fix bugs with for loop desugaring * Check for [`AsRef`]/[`AsMut`] arguments in [`wrong_self_convention`] ## 0.0.138 — 2017-06-05 * Update to *rustc 1.19.0-nightly (0418fa9d3 2017-06-04)* ## 0.0.137 — 2017-06-05 * Update to *rustc 1.19.0-nightly (6684d176c 2017-06-03)* ## 0.0.136 — 2017—05—26 * Update to *rustc 1.19.0-nightly (557967766 2017-05-26)* ## 0.0.135 — 2017—05—24 * Update to *rustc 1.19.0-nightly (5b13bff52 2017-05-23)* ## 0.0.134 — 2017—05—19 * Update to *rustc 1.19.0-nightly (0ed1ec9f9 2017-05-18)* ## 0.0.133 — 2017—05—14 * Update to *rustc 1.19.0-nightly (826d8f385 2017-05-13)* ## 0.0.132 — 2017—05—05 * Fix various bugs and some ices ## 0.0.131 — 2017—05—04 * Update to *rustc 1.19.0-nightly (2d4ed8e0c 2017-05-03)* ## 0.0.130 — 2017—05—03 * Update to *rustc 1.19.0-nightly (6a5fc9eec 2017-05-02)* ## 0.0.129 — 2017-05-01 * Update to *rustc 1.19.0-nightly (06fb4d256 2017-04-30)* ## 0.0.128 — 2017-04-28 * Update to *rustc 1.18.0-nightly (94e884b63 2017-04-27)* ## 0.0.127 — 2017-04-27 * Update to *rustc 1.18.0-nightly (036983201 2017-04-26)* * New lint: [`needless_continue`] ## 0.0.126 — 2017-04-24 * Update to *rustc 1.18.0-nightly (2bd4b5c6d 2017-04-23)* ## 0.0.125 — 2017-04-19 * Update to *rustc 1.18.0-nightly (9f2abadca 2017-04-18)* ## 0.0.124 — 2017-04-16 * Update to *rustc 1.18.0-nightly (d5cf1cb64 2017-04-15)* ## 0.0.123 — 2017-04-07 * Fix various false positives ## 0.0.122 — 2017-04-07 * Rustup to *rustc 1.18.0-nightly (91ae22a01 2017-04-05)* * New lint: [`op_ref`] ## 0.0.121 — 2017-03-21 * Rustup to *rustc 1.17.0-nightly (134c4a0f0 2017-03-20)* ## 0.0.120 — 2017-03-17 * Rustup to *rustc 1.17.0-nightly (0aeb9c129 2017-03-15)* ## 0.0.119 — 2017-03-13 * Rustup to *rustc 1.17.0-nightly (824c9ebbd 2017-03-12)* ## 0.0.118 — 2017-03-05 * Rustup to *rustc 1.17.0-nightly (b1e31766d 2017-03-03)* ## 0.0.117 — 2017-03-01 * Rustup to *rustc 1.17.0-nightly (be760566c 2017-02-28)* ## 0.0.116 — 2017-02-28 * Fix `cargo clippy` on 64 bit windows systems ## 0.0.115 — 2017-02-27 * Rustup to *rustc 1.17.0-nightly (60a0edc6c 2017-02-26)* * New lints: [`zero_ptr`], [`never_loop`], [`mut_from_ref`] ## 0.0.114 — 2017-02-08 * Rustup to *rustc 1.17.0-nightly (c49d10207 2017-02-07)* * Tests are now ui tests (testing the exact output of rustc) ## 0.0.113 — 2017-02-04 * Rustup to *rustc 1.16.0-nightly (eedaa94e3 2017-02-02)* * New lint: [`large_enum_variant`] * `explicit_into_iter_loop` provides suggestions ## 0.0.112 — 2017-01-27 * Rustup to *rustc 1.16.0-nightly (df8debf6d 2017-01-25)* ## 0.0.111 — 2017-01-21 * Rustup to *rustc 1.16.0-nightly (a52da95ce 2017-01-20)* ## 0.0.110 — 2017-01-20 * Add badges and categories to `Cargo.toml` ## 0.0.109 — 2017-01-19 * Update to *rustc 1.16.0-nightly (c07a6ae77 2017-01-17)* ## 0.0.108 — 2017-01-12 * Update to *rustc 1.16.0-nightly (2782e8f8f 2017-01-12)* ## 0.0.107 — 2017-01-11 * Update regex dependency * Fix FP when matching `&&mut` by `&ref` * Reintroduce `for (_, x) in &mut hash_map` -> `for x in hash_map.values_mut()` * New lints: [`unused_io_amount`], [`forget_ref`], [`short_circuit_statement`] ## 0.0.106 — 2017-01-04 * Fix FP introduced by rustup in [`wrong_self_convention`] ## 0.0.105 — 2017-01-04 * Update to *rustc 1.16.0-nightly (468227129 2017-01-03)* * New lints: [`deref_addrof`], [`double_parens`], [`pub_enum_variant_names`] * Fix suggestion in [`new_without_default`] * FP fix in [`absurd_extreme_comparisons`] ## 0.0.104 — 2016-12-15 * Update to *rustc 1.15.0-nightly (8f02c429a 2016-12-15)* ## 0.0.103 — 2016-11-25 * Update to *rustc 1.15.0-nightly (d5814b03e 2016-11-23)* ## 0.0.102 — 2016-11-24 * Update to *rustc 1.15.0-nightly (3bf2be9ce 2016-11-22)* ## 0.0.101 — 2016-11-23 * Update to *rustc 1.15.0-nightly (7b3eeea22 2016-11-21)* * New lint: [`string_extend_chars`] ## 0.0.100 — 2016-11-20 * Update to *rustc 1.15.0-nightly (ac635aa95 2016-11-18)* ## 0.0.99 — 2016-11-18 * Update to rustc 1.15.0-nightly (0ed951993 2016-11-14) * New lint: [`get_unwrap`] ## 0.0.98 — 2016-11-08 * Fixes an issue due to a change in how cargo handles `--sysroot`, which broke `cargo clippy` ## 0.0.97 — 2016-11-03 * For convenience, `cargo clippy` defines a `cargo-clippy` feature. This was previously added for a short time under the name `clippy` but removed for compatibility. * `cargo clippy --help` is more helping (and less helpful :smile:) * Rustup to *rustc 1.14.0-nightly (5665bdf3e 2016-11-02)* * New lints: [`if_let_redundant_pattern_matching`], [`partialeq_ne_impl`] ## 0.0.96 — 2016-10-22 * Rustup to *rustc 1.14.0-nightly (f09420685 2016-10-20)* * New lint: [`iter_skip_next`] ## 0.0.95 — 2016-10-06 * Rustup to *rustc 1.14.0-nightly (3210fd5c2 2016-10-05)* ## 0.0.94 — 2016-10-04 * Fixes bustage on Windows due to forbidden directory name ## 0.0.93 — 2016-10-03 * Rustup to *rustc 1.14.0-nightly (144af3e97 2016-10-02)* * `option_map_unwrap_or` and `option_map_unwrap_or_else` are now allowed by default. * New lint: [`explicit_into_iter_loop`] ## 0.0.92 — 2016-09-30 * Rustup to *rustc 1.14.0-nightly (289f3a4ca 2016-09-29)* ## 0.0.91 — 2016-09-28 * Rustup to *rustc 1.13.0-nightly (d0623cf7b 2016-09-26)* ## 0.0.90 — 2016-09-09 * Rustup to *rustc 1.13.0-nightly (f1f40f850 2016-09-09)* ## 0.0.89 — 2016-09-06 * Rustup to *rustc 1.13.0-nightly (cbe4de78e 2016-09-05)* ## 0.0.88 — 2016-09-04 * Rustup to *rustc 1.13.0-nightly (70598e04f 2016-09-03)* * The following lints are not new but were only usable through the `clippy` lint groups: [`filter_next`], `for_loop_over_option`, `for_loop_over_result` and [`match_overlapping_arm`]. You should now be able to `#[allow/deny]` them individually and they are available directly through `cargo clippy`. ## 0.0.87 — 2016-08-31 * Rustup to *rustc 1.13.0-nightly (eac41469d 2016-08-30)* * New lints: [`builtin_type_shadow`] * Fix FP in [`zero_prefixed_literal`] and `0b`/`0o` ## 0.0.86 — 2016-08-28 * Rustup to *rustc 1.13.0-nightly (a23064af5 2016-08-27)* * New lints: [`missing_docs_in_private_items`], [`zero_prefixed_literal`] ## 0.0.85 — 2016-08-19 * Fix ICE with [`useless_attribute`] * [`useless_attribute`] ignores `unused_imports` on `use` statements ## 0.0.84 — 2016-08-18 * Rustup to *rustc 1.13.0-nightly (aef6971ca 2016-08-17)* ## 0.0.83 — 2016-08-17 * Rustup to *rustc 1.12.0-nightly (1bf5fa326 2016-08-16)* * New lints: [`print_with_newline`], [`useless_attribute`] ## 0.0.82 — 2016-08-17 * Rustup to *rustc 1.12.0-nightly (197be89f3 2016-08-15)* * New lint: [`module_inception`] ## 0.0.81 — 2016-08-14 * Rustup to *rustc 1.12.0-nightly (1deb02ea6 2016-08-12)* * New lints: [`eval_order_dependence`], [`mixed_case_hex_literals`], [`unseparated_literal_suffix`] * False positive fix in [`too_many_arguments`] * Addition of functionality to [`needless_borrow`] * Suggestions for [`clone_on_copy`] * Bug fix in [`wrong_self_convention`] * Doc improvements ## 0.0.80 — 2016-07-31 * Rustup to *rustc 1.12.0-nightly (1225e122f 2016-07-30)* * New lints: [`misrefactored_assign_op`], [`serde_api_misuse`] ## 0.0.79 — 2016-07-10 * Rustup to *rustc 1.12.0-nightly (f93aaf84c 2016-07-09)* * Major suggestions refactoring ## 0.0.78 — 2016-07-02 * Rustup to *rustc 1.11.0-nightly (01411937f 2016-07-01)* * New lints: [`wrong_transmute`], [`double_neg`], [`filter_map`] * For compatibility, `cargo clippy` does not defines the `clippy` feature introduced in 0.0.76 anymore * [`collapsible_if`] now considers `if let` ## 0.0.77 — 2016-06-21 * Rustup to *rustc 1.11.0-nightly (5522e678b 2016-06-20)* * New lints: `stutter` and [`iter_nth`] ## 0.0.76 — 2016-06-10 * Rustup to *rustc 1.11.0-nightly (7d2f75a95 2016-06-09)* * `cargo clippy` now automatically defines the `clippy` feature * New lint: [`not_unsafe_ptr_arg_deref`] ## 0.0.75 — 2016-06-08 * Rustup to *rustc 1.11.0-nightly (763f9234b 2016-06-06)* ## 0.0.74 — 2016-06-07 * Fix bug with `cargo-clippy` JSON parsing * Add the `CLIPPY_DISABLE_DOCS_LINKS` environment variable to deactivate the “for further information visit *lint-link*” message. ## 0.0.73 — 2016-06-05 * Fix false positives in [`useless_let_if_seq`] ## 0.0.72 — 2016-06-04 * Fix false positives in [`useless_let_if_seq`] ## 0.0.71 — 2016-05-31 * Rustup to *rustc 1.11.0-nightly (a967611d8 2016-05-30)* * New lint: [`useless_let_if_seq`] ## 0.0.70 — 2016-05-28 * Rustup to *rustc 1.10.0-nightly (7bddce693 2016-05-27)* * [`invalid_regex`] and [`trivial_regex`] can now warn on `RegexSet::new`, `RegexBuilder::new` and byte regexes ## 0.0.69 — 2016-05-20 * Rustup to *rustc 1.10.0-nightly (476fe6eef 2016-05-21)* * [`used_underscore_binding`] has been made `Allow` temporarily ## 0.0.68 — 2016-05-17 * Rustup to *rustc 1.10.0-nightly (cd6a40017 2016-05-16)* * New lint: [`unnecessary_operation`] ## 0.0.67 — 2016-05-12 * Rustup to *rustc 1.10.0-nightly (22ac88f1a 2016-05-11)* ## 0.0.66 — 2016-05-11 * New `cargo clippy` subcommand * New lints: [`assign_op_pattern`], [`assign_ops`], [`needless_borrow`] ## 0.0.65 — 2016-05-08 * Rustup to *rustc 1.10.0-nightly (62e2b2fb7 2016-05-06)* * New lints: [`float_arithmetic`], [`integer_arithmetic`] ## 0.0.64 — 2016-04-26 * Rustup to *rustc 1.10.0-nightly (645dd013a 2016-04-24)* * New lints: `temporary_cstring_as_ptr`, [`unsafe_removed_from_name`], and [`mem_forget`] ## 0.0.63 — 2016-04-08 * Rustup to *rustc 1.9.0-nightly (7979dd608 2016-04-07)* ## 0.0.62 — 2016-04-07 * Rustup to *rustc 1.9.0-nightly (bf5da36f1 2016-04-06)* ## 0.0.61 — 2016-04-03 * Rustup to *rustc 1.9.0-nightly (5ab11d72c 2016-04-02)* * New lint: [`invalid_upcast_comparisons`] ## 0.0.60 — 2016-04-01 * Rustup to *rustc 1.9.0-nightly (e1195c24b 2016-03-31)* ## 0.0.59 — 2016-03-31 * Rustup to *rustc 1.9.0-nightly (30a3849f2 2016-03-30)* * New lints: [`logic_bug`], [`nonminimal_bool`] * Fixed: [`match_same_arms`] now ignores arms with guards * Improved: [`useless_vec`] now warns on `for … in vec![…]` ## 0.0.58 — 2016-03-27 * Rustup to *rustc 1.9.0-nightly (d5a91e695 2016-03-26)* * New lint: [`doc_markdown`] ## 0.0.57 — 2016-03-27 * Update to *rustc 1.9.0-nightly (a1e29daf1 2016-03-25)* * Deprecated lints: [`str_to_string`], [`string_to_string`], [`unstable_as_slice`], [`unstable_as_mut_slice`] * New lint: [`crosspointer_transmute`] ## 0.0.56 — 2016-03-23 * Update to *rustc 1.9.0-nightly (0dcc413e4 2016-03-22)* * New lints: [`many_single_char_names`] and [`similar_names`] ## 0.0.55 — 2016-03-21 * Update to *rustc 1.9.0-nightly (02310fd31 2016-03-19)* ## 0.0.54 — 2016-03-16 * Update to *rustc 1.9.0-nightly (c66d2380a 2016-03-15)* ## 0.0.53 — 2016-03-15 * Add a [configuration file] ## ~~0.0.52~~ ## 0.0.51 — 2016-03-13 * Add `str` to types considered by [`len_zero`] * New lints: [`indexing_slicing`] ## 0.0.50 — 2016-03-11 * Update to *rustc 1.9.0-nightly (c9629d61c 2016-03-10)* ## 0.0.49 — 2016-03-09 * Update to *rustc 1.9.0-nightly (eabfc160f 2016-03-08)* * New lints: [`overflow_check_conditional`], `unused_label`, [`new_without_default`] ## 0.0.48 — 2016-03-07 * Fixed: ICE in [`needless_range_loop`] with globals ## 0.0.47 — 2016-03-07 * Update to *rustc 1.9.0-nightly (998a6720b 2016-03-07)* * New lint: [`redundant_closure_call`] [`AsMut`]: https://doc.rust-lang.org/std/convert/trait.AsMut.html [`AsRef`]: https://doc.rust-lang.org/std/convert/trait.AsRef.html [configuration file]: ./rust-clippy#configuration [pull3665]: https://github.com/rust-lang/rust-clippy/pull/3665 [adding_lints]: https://github.com/rust-lang/rust-clippy/blob/master/book/src/development/adding_lints.md [`README.md`]: https://github.com/rust-lang/rust-clippy/blob/master/README.md [Clippy's lint list]: 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