LL | fn what(&self) -> Self;
| ^^^^^^^^^^^^^^^^^^^^^^^
|
- = note: `-D clippy::return-self-not-must-use` implied by `-D warnings`
= help: consider adding the `#[must_use]` attribute to the method or directly to the `Self` type
+ = note: `-D clippy::return-self-not-must-use` implied by `-D warnings`
error: missing `#[must_use]` attribute on a method returning `Self`
--> $DIR/return_self_not_must_use.rs:18:5