error[E0308]: mismatched types --> $DIR/associated-const-impl-wrong-lifetime.rs:18:5 | LL | const NAME: &'a str = "unit"; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch | = note: expected type `&'static str` found type `&'a str` note: the lifetime 'a as defined on the impl at 17:1... --> $DIR/associated-const-impl-wrong-lifetime.rs:17:1 | LL | impl<'a> Foo for &'a () { | ^^^^^^^^^^^^^^^^^^^^^^^ = note: ...does not necessarily outlive the static lifetime error: aborting due to previous error For more information about this error, try `rustc --explain E0308`.