infer_opaque_hidden_type = opaque type's hidden type cannot be another opaque type from the same scope .label = one of the two opaque types used here has to be outside its defining scope .opaque_type = opaque type whose hidden type is being assigned .hidden_type = opaque type being used as hidden type infer_type_annotations_needed = {$source_kind -> [closure] type annotations needed for the closure `{$source_name}` [normal] type annotations needed for `{$source_name}` *[other] type annotations needed } .label = type must be known at this point infer_label_bad = {$bad_kind -> *[other] cannot infer type [more_info] cannot infer {$prefix_kind -> *[type] type for {$prefix} [const_with_param] the value of const parameter [const] the value of the constant } `{$name}`{$has_parent -> [true] {" "}declared on the {$parent_prefix} `{$parent_name}` *[false] {""} } } infer_source_kind_subdiag_let = {$kind -> [with_pattern] consider giving `{$name}` an explicit type [closure] consider giving this closure parameter an explicit type *[other] consider giving this pattern a type }{$x_kind -> [has_name] , where the {$prefix_kind -> *[type] type for {$prefix} [const_with_param] value of const parameter [const] value of the constant } `{$arg_name}` is specified [underscore] , where the placeholders `_` are specified *[empty] {""} } infer_source_kind_subdiag_generic_label = cannot infer {$is_type -> [true] type *[false] the value } of the {$is_type -> [true] type *[false] const } {$parent_exists -> [true] parameter `{$param_name}` declared on the {$parent_prefix} `{$parent_name}` *[false] parameter {$param_name} } infer_source_kind_subdiag_generic_suggestion = consider specifying the generic {$arg_count -> [one] argument *[other] arguments } infer_source_kind_fully_qualified = try using a fully qualified path to specify the expected types infer_source_kind_closure_return = try giving this closure an explicit return type # generator_kind may need to be translated infer_need_type_info_in_generator = type inside {$generator_kind -> [async_block] `async` block [async_closure] `async` closure [async_fn] `async fn` body *[generator] generator } must be known in this context infer_subtype = ...so that the {$requirement -> [method_compat] method type is compatible with trait [type_compat] associated type is compatible with trait [const_compat] const is compatible with trait [expr_assignable] expression is assignable [if_else_different] `if` and `else` have incompatible types [no_else] `if` missing an `else` returns `()` [fn_main_correct_type] `main` function has the correct type [fn_start_correct_type] `#[start]` function has the correct type [intristic_correct_type] intrinsic has the correct type [method_correct_type] method receiver has the correct type *[other] types are compatible } infer_subtype_2 = ...so that {$requirement -> [method_compat] method type is compatible with trait [type_compat] associated type is compatible with trait [const_compat] const is compatible with trait [expr_assignable] expression is assignable [if_else_different] `if` and `else` have incompatible types [no_else] `if` missing an `else` returns `()` [fn_main_correct_type] `main` function has the correct type [fn_start_correct_type] `#[start]` function has the correct type [intristic_correct_type] intrinsic has the correct type [method_correct_type] method receiver has the correct type *[other] types are compatible } infer_reborrow = ...so that reference does not outlive borrowed content infer_reborrow_upvar = ...so that closure can access `{$name}` infer_relate_object_bound = ...so that it can be closed over into an object infer_reference_outlives_referent = ...so that the reference type `{$name}` does not outlive the data it points at infer_relate_param_bound = ...so that the type `{$name}` will meet its required lifetime bounds{$continues -> [true] ... *[false] {""} } infer_relate_param_bound_2 = ...that is required by this bound infer_relate_region_param_bound = ...so that the declared lifetime parameter bounds are satisfied infer_compare_impl_item_obligation = ...so that the definition in impl matches the definition from the trait infer_ascribe_user_type_prove_predicate = ...so that the where clause holds infer_nothing = {""} infer_lifetime_mismatch = lifetime mismatch infer_declared_different = this parameter and the return type are declared with different lifetimes... infer_data_returned = ...but data{$label_var1_exists -> [true] {" "}from `{$label_var1}` *[false] {""} } is returned here infer_data_lifetime_flow = ...but data with one lifetime flows into the other here infer_declared_multiple = this type is declared with multiple lifetimes... infer_types_declared_different = these two types are declared with different lifetimes... infer_data_flows = ...but data{$label_var1_exists -> [true] {" "}from `{$label_var1}` *[false] -> {""} } flows{$label_var2_exists -> [true] {" "}into `{$label_var2}` *[false] -> {""} } here infer_lifetime_param_suggestion = consider introducing a named lifetime parameter{$is_impl -> [true] {" "}and update trait if needed *[false] {""} } infer_lifetime_param_suggestion_elided = each elided lifetime in input position becomes a distinct lifetime infer_region_explanation = {$pref_kind -> *[should_not_happen] [{$pref_kind}] [ref_valid_for] ...the reference is valid for [content_valid_for] ...but the borrowed content is only valid for [type_obj_valid_for] object type is valid for [source_pointer_valid_for] source pointer is only valid for [type_satisfy] type must satisfy [type_outlive] type must outlive [lf_param_instantiated_with] lifetime parameter instantiated with [lf_param_must_outlive] but lifetime parameter must outlive [lf_instantiated_with] lifetime instantiated with [lf_must_outlive] but lifetime must outlive [pointer_valid_for] the pointer is valid for [data_valid_for] but the referenced data is only valid for [empty] {""} }{$pref_kind -> [empty] {""} *[other] {" "} }{$desc_kind -> *[should_not_happen] [{$desc_kind}] [restatic] the static lifetime [revar] lifetime {$desc_arg} [as_defined] the lifetime `{$desc_arg}` as defined here [as_defined_anon] the anonymous lifetime as defined here [defined_here] the anonymous lifetime defined here [anon_num_here] the anonymous lifetime #{$desc_num_arg} defined here [defined_here_reg] the lifetime `{$desc_arg}` as defined here }{$suff_kind -> *[should_not_happen] [{$suff_kind}] [empty]{""} [continues] ... [req_by_binding] {" "}as required by this binding } infer_outlives_content = lifetime of reference outlives lifetime of borrowed content... infer_outlives_bound = lifetime of the source pointer does not outlive lifetime bound of the object type infer_fullfill_req_lifetime = the type `{$ty}` does not fulfill the required lifetime infer_lf_bound_not_satisfied = lifetime bound not satisfied infer_borrowed_too_long = a value of type `{$ty}` is borrowed for too long infer_ref_longer_than_data = in type `{$ty}`, reference has a longer lifetime than the data it references infer_mismatched_static_lifetime = incompatible lifetime on type infer_does_not_outlive_static_from_impl = ...does not necessarily outlive the static lifetime introduced by the compatible `impl` infer_implicit_static_lifetime_note = this has an implicit `'static` lifetime requirement infer_implicit_static_lifetime_suggestion = consider relaxing the implicit `'static` requirement infer_msl_introduces_static = introduces a `'static` lifetime requirement infer_msl_unmet_req = because this has an unmet lifetime requirement infer_msl_trait_note = this has an implicit `'static` lifetime requirement infer_msl_trait_sugg = consider relaxing the implicit `'static` requirement infer_suggest_add_let_for_letchains = consider adding `let` infer_explicit_lifetime_required_with_ident = explicit lifetime required in the type of `{$simple_ident}` .label = lifetime `{$named}` required infer_explicit_lifetime_required_with_param_type = explicit lifetime required in parameter type .label = lifetime `{$named}` required infer_explicit_lifetime_required_sugg_with_ident = add explicit lifetime `{$named}` to the type of `{$simple_ident}` infer_explicit_lifetime_required_sugg_with_param_type = add explicit lifetime `{$named}` to type infer_actual_impl_expl_expected_signature_two = {$leading_ellipsis -> [true] ... *[false] {""} }closure with signature `{$ty_or_sig}` must implement `{$trait_path}`, for any two lifetimes `'{$lifetime_1}` and `'{$lifetime_2}`... infer_actual_impl_expl_expected_signature_any = {$leading_ellipsis -> [true] ... *[false] {""} }closure with signature `{$ty_or_sig}` must implement `{$trait_path}`, for any lifetime `'{$lifetime_1}`... infer_actual_impl_expl_expected_signature_some = {$leading_ellipsis -> [true] ... *[false] {""} }closure with signature `{$ty_or_sig}` must implement `{$trait_path}`, for some specific lifetime `'{$lifetime_1}`... infer_actual_impl_expl_expected_signature_nothing = {$leading_ellipsis -> [true] ... *[false] {""} }closure with signature `{$ty_or_sig}` must implement `{$trait_path}` infer_actual_impl_expl_expected_passive_two = {$leading_ellipsis -> [true] ... *[false] {""} }`{$trait_path}` would have to be implemented for the type `{$ty_or_sig}`, for any two lifetimes `'{$lifetime_1}` and `'{$lifetime_2}`... infer_actual_impl_expl_expected_passive_any = {$leading_ellipsis -> [true] ... *[false] {""} }`{$trait_path}` would have to be implemented for the type `{$ty_or_sig}`, for any lifetime `'{$lifetime_1}`... infer_actual_impl_expl_expected_passive_some = {$leading_ellipsis -> [true] ... *[false] {""} }`{$trait_path}` would have to be implemented for the type `{$ty_or_sig}`, for some specific lifetime `'{$lifetime_1}`... infer_actual_impl_expl_expected_passive_nothing = {$leading_ellipsis -> [true] ... *[false] {""} }`{$trait_path}` would have to be implemented for the type `{$ty_or_sig}` infer_actual_impl_expl_expected_other_two = {$leading_ellipsis -> [true] ... *[false] {""} }`{$ty_or_sig}` must implement `{$trait_path}`, for any two lifetimes `'{$lifetime_1}` and `'{$lifetime_2}`... infer_actual_impl_expl_expected_other_any = {$leading_ellipsis -> [true] ... *[false] {""} }`{$ty_or_sig}` must implement `{$trait_path}`, for any lifetime `'{$lifetime_1}`... infer_actual_impl_expl_expected_other_some = {$leading_ellipsis -> [true] ... *[false] {""} }`{$ty_or_sig}` must implement `{$trait_path}`, for some specific lifetime `'{$lifetime_1}`... infer_actual_impl_expl_expected_other_nothing = {$leading_ellipsis -> [true] ... *[false] {""} }`{$ty_or_sig}` must implement `{$trait_path}` infer_actual_impl_expl_but_actually_implements_trait = ...but it actually implements `{$trait_path}`{$has_lifetime -> [true] , for some specific lifetime `'{$lifetime}` *[false] {""} } infer_actual_impl_expl_but_actually_implemented_for_ty = ...but `{$trait_path}` is actually implemented for the type `{$ty}`{$has_lifetime -> [true] , for some specific lifetime `'{$lifetime}` *[false] {""} } infer_actual_impl_expl_but_actually_ty_implements = ...but `{$ty}` actually implements `{$trait_path}`{$has_lifetime -> [true] , for some specific lifetime `'{$lifetime}` *[false] {""} } infer_trait_placeholder_mismatch = implementation of `{$trait_def_id}` is not general enough .label_satisfy = doesn't satisfy where-clause .label_where = due to a where-clause on `{$def_id}`... .label_dup = implementation of `{$trait_def_id}` is not general enough infer_trait_impl_diff = `impl` item signature doesn't match `trait` item signature .found = found `{$found}` .expected = expected `{$expected}` .expected_found = expected signature `{$expected}` {" "}found signature `{$found}` infer_tid_rel_help = verify the lifetime relationships in the `trait` and `impl` between the `self` argument, the other inputs and its output infer_tid_consider_borrowing = consider borrowing this type parameter in the trait infer_tid_param_help = the lifetime requirements from the `impl` do not correspond to the requirements in the `trait` infer_dtcs_has_lifetime_req_label = this has an implicit `'static` lifetime requirement infer_dtcs_introduces_requirement = calling this method introduces the `impl`'s `'static` requirement infer_dtcs_has_req_note = the used `impl` has a `'static` requirement infer_dtcs_suggestion = consider relaxing the implicit `'static` requirement infer_but_calling_introduces = {$has_param_name -> [true] `{$param_name}` *[false] `fn` parameter } has {$lifetime_kind -> [true] lifetime `{$lifetime}` *[false] an anonymous lifetime `'_` } but calling `{$assoc_item}` introduces an implicit `'static` lifetime requirement .label1 = {$has_lifetime -> [true] lifetime `{$lifetime}` *[false] an anonymous lifetime `'_` } .label2 = ...is used and required to live as long as `'static` here because of an implicit lifetime bound on the {$has_impl_path -> [true] `impl` of `{$impl_path}` *[false] inherent `impl` } infer_but_needs_to_satisfy = {$has_param_name -> [true] `{$param_name}` *[false] `fn` parameter } has {$has_lifetime -> [true] lifetime `{$lifetime}` *[false] an anonymous lifetime `'_` } but it needs to satisfy a `'static` lifetime requirement .influencer = this data with {$has_lifetime -> [true] lifetime `{$lifetime}` *[false] an anonymous lifetime `'_` }... .require = {$spans_empty -> *[true] ...is used and required to live as long as `'static` here [false] ...and is required to live as long as `'static` here } .used_here = ...is used here... .introduced_by_bound = `'static` lifetime requirement introduced by this bound infer_more_targeted = {$has_param_name -> [true] `{$param_name}` *[false] `fn` parameter } has {$has_lifetime -> [true] lifetime `{$lifetime}` *[false] an anonymous lifetime `'_` } but calling `{$ident}` introduces an implicit `'static` lifetime requirement infer_ril_introduced_here = `'static` requirement introduced here infer_ril_introduced_by = requirement introduced by this return type infer_ril_because_of = because of this returned expression infer_ril_static_introduced_by = "`'static` lifetime requirement introduced by the return type infer_where_remove = remove the `where` clause infer_where_copy_predicates = copy the `where` clause predicates from the trait infer_srs_remove_and_box = consider removing this semicolon and boxing the expressions infer_srs_remove = consider removing this semicolon infer_srs_add = consider returning the local binding `{$ident}` infer_srs_add_one = consider returning one of these bindings infer_await_both_futures = consider `await`ing on both `Future`s infer_await_future = consider `await`ing on the `Future` infer_await_note = calling an async function returns a future infer_prlf_defined_with_sub = the lifetime `{$sub_symbol}` defined here... infer_prlf_defined_without_sub = the lifetime defined here... infer_prlf_must_oultive_with_sup = ...must outlive the lifetime `{$sup_symbol}` defined here infer_prlf_must_oultive_without_sup = ...must outlive the lifetime defined here infer_prlf_known_limitation = this is a known limitation that will be removed in the future (see issue #100013 for more information) infer_opaque_captures_lifetime = hidden type for `{$opaque_ty}` captures lifetime that does not appear in bounds .label = opaque type defined here