error[E0277]: the trait bound `for<'a> <_ as Trait>::Assoc<'a>: Marker` is not satisfied --> $DIR/issue-88460.rs:30:5 | LL | test(Foo); | ^^^^ the trait `for<'a> Marker` is not implemented for `<_ as Trait>::Assoc<'a>` | = help: the trait `Marker` is implemented for `()` note: required by a bound in `test` --> $DIR/issue-88460.rs:17:27 | LL | fn test(value: T) | ---- required by a bound in this ... LL | for<'a> T::Assoc<'a>: Marker, | ^^^^^^ required by this bound in `test` error: aborting due to previous error For more information about this error, try `rustc --explain E0277`.