1 error[E0667]: `impl Trait` is not allowed in path parameters
2 --> $DIR/issue-57979-impl-trait-in-path.rs:8:48
4 LL | pub fn demo(_: impl Quux<(), Assoc=<() as Quux<impl Bar>>::Assoc>) { }
7 error: aborting due to previous error
9 For more information about this error, try `rustc --explain E0667`.