1 error: concrete type differs from previous defining opaque type use
2 --> $DIR/not_a_defining_use.rs:25:5
4 LL | (t, <U as Bar>::FOO)
5 | ^^^^^^^^^^^^^^^^^^^^ expected `(T, i8)`, got `(T, <U as Bar>::Blub)`
7 note: previous use here
8 --> $DIR/not_a_defining_use.rs:11:5
13 error[E0277]: `T` doesn't implement `Debug`
14 --> $DIR/not_a_defining_use.rs:7:18
16 LL | type Two<T, U> = impl Debug;
17 | ^^^^^^^^^^ `T` cannot be formatted using `{:?}` because it doesn't implement `Debug`
19 = note: required because of the requirements on the impl of `Debug` for `(T, i8)`
20 help: consider restricting type parameter `T`
22 LL | type Two<T: std::fmt::Debug, U> = impl Debug;
25 error: aborting due to 2 previous errors
27 For more information about this error, try `rustc --explain E0277`.