error[E0107]: type alias takes 1 lifetime argument but 2 lifetime arguments were supplied
  --> $DIR/mismatched_arg_count.rs:9:29
   |
LL | fn bar<'a, T: Trait<'a>>(_: Alias<'a, 'a, T>) {}
   |                             ^^^^^     -- help: remove this lifetime argument
   |                             |
   |                             expected 1 lifetime argument
   |
note: type alias defined here, with 1 lifetime parameter: `'a`
  --> $DIR/mismatched_arg_count.rs:7:6
   |
LL | type Alias<'a, T> = <T as Trait<'a>>::Assoc;
   |      ^^^^^ --

error: aborting due to previous error

For more information about this error, try `rustc --explain E0107`.