3 // Make sure we don't crash with a cycle error during coherence.
5 #![feature(specialization)] //~ WARN the feature `specialization` is incomplete
11 impl<T> Trait<T> for Vec<T> {
12 default type Assoc = ();
15 impl Trait<u8> for Vec<u8> {
19 impl<T> Trait<T> for String {
23 impl Trait<<Vec<u8> as Trait<u8>>::Assoc> for String {}