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rust-clippy/tests/ui/double_must_use.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 06:37:41 +00:00
error: this function has an empty `#[must_use]` attribute, but returns a type already marked as `#[must_use]`
Remove $DIR replacement in test output
2024-02-17 12:16:29 +00:00
--> tests/ui/double_must_use.rs:5:1
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 06:37:41 +00:00
|
LL | pub fn must_use_result() -> Result<(), ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: either add some descriptive text or remove the attribute
bless clippy
2022-09-22 16:04:22 +00:00
= note: `-D clippy::double-must-use` implied by `-D warnings`
Adjust clippy tests with new rustc help suggestion for lints
2023-08-01 12:02:21 +00:00
= help: to override `-D warnings` add `#[allow(clippy::double_must_use)]`
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 06:37:41 +00:00
error: this function has an empty `#[must_use]` attribute, but returns a type already marked as `#[must_use]`
Remove $DIR replacement in test output
2024-02-17 12:16:29 +00:00
--> tests/ui/double_must_use.rs:11:1
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 06:37:41 +00:00
|
LL | pub fn must_use_tuple() -> (Result<(), ()>, u8) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: either add some descriptive text or remove the attribute
error: this function has an empty `#[must_use]` attribute, but returns a type already marked as `#[must_use]`
Remove $DIR replacement in test output
2024-02-17 12:16:29 +00:00
--> tests/ui/double_must_use.rs:17:1
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 06:37:41 +00:00
|
LL | pub fn must_use_array() -> [Result<(), ()>; 1] {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: either add some descriptive text or remove the attribute
Merge commit '83e42a2337dadac915c956d125f1d69132f36425' into clippyup
2023-04-11 13:31:08 +00:00
error: this function has an empty `#[must_use]` attribute, but returns a type already marked as `#[must_use]`
Remove $DIR replacement in test output
2024-02-17 12:16:29 +00:00
--> tests/ui/double_must_use.rs:34:1
Merge commit '83e42a2337dadac915c956d125f1d69132f36425' into clippyup
2023-04-11 13:31:08 +00:00
|
LL | async fn async_must_use_result() -> Result<(), ()> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: either add some descriptive text or remove the attribute
error: aborting due to 4 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 06:37:41 +00:00
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