rust/tests/ui/must_use_unit.stderr
Andre Bogus cc622608db 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.
2019-10-14 12:09:04 +02:00

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error: this unit-returning function has a `#[must_use]` attribute
--> $DIR/must_use_unit.rs:11:1
|
LL | #[must_use]
| ----------- help: remove the attribute
LL | pub fn must_use_default() {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `-D clippy::must-use-unit` implied by `-D warnings`
error: this unit-returning function has a `#[must_use]` attribute
--> $DIR/must_use_unit.rs:14:1
|
LL | #[must_use]
| ----------- help: remove the attribute
LL | pub fn must_use_unit() -> () {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: this unit-returning function has a `#[must_use]` attribute
--> $DIR/must_use_unit.rs:17:1
|
LL | #[must_use = "With note"]
| ------------------------- help: remove the attribute
LL | pub fn must_use_with_note() {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 3 previous errors