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rust/tests/ui/must_use_candidates.stderr

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new lints around `#[must_use]` fns `must_use_unit` lints unit-returning functions with a `#[must_use]` attribute, suggesting to remove it. `double_must_use` lints functions with a plain `#[must_use]` attribute, but which return a type which is already `#[must_use]`, so the attribute has no benefit. `must_use_candidate` is a pedantic lint that lints functions and methods that return some non-unit type that is not already `#[must_use]` and suggests to add the annotation.
2019-09-18 01:37:41 -05:00
error: this function could have a `#[must_use]` attribute
Update tests for revert of never type stabilization
2019-12-14 07:40:43 -06:00
--> $DIR/must_use_candidates.rs:12:1
new lints around `#[must_use]` fns `must_use_unit` lints unit-returning functions with a `#[must_use]` attribute, suggesting to remove it. `double_must_use` lints functions with a plain `#[must_use]` attribute, but which return a type which is already `#[must_use]`, so the attribute has no benefit. `must_use_candidate` is a pedantic lint that lints functions and methods that return some non-unit type that is not already `#[must_use]` and suggests to add the annotation.
2019-09-18 01:37:41 -05:00
|
LL | pub fn pure(i: u8) -> u8 {
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn pure(i: u8) -> u8`
|
= note: `-D clippy::must-use-candidate` implied by `-D warnings`
error: this method could have a `#[must_use]` attribute
Update tests for revert of never type stabilization
2019-12-14 07:40:43 -06:00
--> $DIR/must_use_candidates.rs:17:5
new lints around `#[must_use]` fns `must_use_unit` lints unit-returning functions with a `#[must_use]` attribute, suggesting to remove it. `double_must_use` lints functions with a plain `#[must_use]` attribute, but which return a type which is already `#[must_use]`, so the attribute has no benefit. `must_use_candidate` is a pedantic lint that lints functions and methods that return some non-unit type that is not already `#[must_use]` and suggests to add the annotation.
2019-09-18 01:37:41 -05:00
|
LL | pub fn inherent_pure(&self) -> u8 {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn inherent_pure(&self) -> u8`
error: this function could have a `#[must_use]` attribute
Update tests for revert of never type stabilization
2019-12-14 07:40:43 -06:00
--> $DIR/must_use_candidates.rs:48:1
new lints around `#[must_use]` fns `must_use_unit` lints unit-returning functions with a `#[must_use]` attribute, suggesting to remove it. `double_must_use` lints functions with a plain `#[must_use]` attribute, but which return a type which is already `#[must_use]`, so the attribute has no benefit. `must_use_candidate` is a pedantic lint that lints functions and methods that return some non-unit type that is not already `#[must_use]` and suggests to add the annotation.
2019-09-18 01:37:41 -05:00
|
LL | pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool`
error: this function could have a `#[must_use]` attribute
Update tests for revert of never type stabilization
2019-12-14 07:40:43 -06:00
--> $DIR/must_use_candidates.rs:60:1
new lints around `#[must_use]` fns `must_use_unit` lints unit-returning functions with a `#[must_use]` attribute, suggesting to remove it. `double_must_use` lints functions with a plain `#[must_use]` attribute, but which return a type which is already `#[must_use]`, so the attribute has no benefit. `must_use_candidate` is a pedantic lint that lints functions and methods that return some non-unit type that is not already `#[must_use]` and suggests to add the annotation.
2019-09-18 01:37:41 -05:00
|
LL | pub fn rcd(_x: Rc<u32>) -> bool {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn rcd(_x: Rc<u32>) -> bool`
error: this function could have a `#[must_use]` attribute
Update tests for revert of never type stabilization
2019-12-14 07:40:43 -06:00
--> $DIR/must_use_candidates.rs:68:1
new lints around `#[must_use]` fns `must_use_unit` lints unit-returning functions with a `#[must_use]` attribute, suggesting to remove it. `double_must_use` lints functions with a plain `#[must_use]` attribute, but which return a type which is already `#[must_use]`, so the attribute has no benefit. `must_use_candidate` is a pedantic lint that lints functions and methods that return some non-unit type that is not already `#[must_use]` and suggests to add the annotation.
2019-09-18 01:37:41 -05:00
|
LL | pub fn arcd(_x: Arc<u32>) -> bool {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn arcd(_x: Arc<u32>) -> bool`
no more must-use-candidate on trait impls
2019-11-12 16:36:22 -06:00
error: aborting due to 5 previous errors
new lints around `#[must_use]` fns `must_use_unit` lints unit-returning functions with a `#[must_use]` attribute, suggesting to remove it. `double_must_use` lints functions with a plain `#[must_use]` attribute, but which return a type which is already `#[must_use]`, so the attribute has no benefit. `must_use_candidate` is a pedantic lint that lints functions and methods that return some non-unit type that is not already `#[must_use]` and suggests to add the annotation.
2019-09-18 01:37:41 -05:00
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