error: unmatched angle brackets
  --> $DIR/issue-57819.rs:19:10
   |
LL |     bar::<<<<<T as Foo>::Output>();
   |          ^^^ help: remove extra angle brackets

error: unmatched angle brackets
  --> $DIR/issue-57819.rs:22:10
   |
LL |     bar::<<<<T as Foo>::Output>();
   |          ^^ help: remove extra angle brackets

error: unmatched angle bracket
  --> $DIR/issue-57819.rs:25:10
   |
LL |     bar::<<<T as Foo>::Output>();
   |          ^ help: remove extra angle bracket

error: unmatched angle brackets
  --> $DIR/issue-57819.rs:34:48
   |
LL |     let _ = vec![1, 2, 3].into_iter().collect::<<<<<Vec<usize>>();
   |                                                ^^^^ help: remove extra angle brackets

error: unmatched angle brackets
  --> $DIR/issue-57819.rs:37:48
   |
LL |     let _ = vec![1, 2, 3].into_iter().collect::<<<<Vec<usize>>();
   |                                                ^^^ help: remove extra angle brackets

error: unmatched angle brackets
  --> $DIR/issue-57819.rs:40:48
   |
LL |     let _ = vec![1, 2, 3].into_iter().collect::<<<Vec<usize>>();
   |                                                ^^ help: remove extra angle brackets

error: unmatched angle bracket
  --> $DIR/issue-57819.rs:43:48
   |
LL |     let _ = vec![1, 2, 3].into_iter().collect::<<Vec<usize>>();
   |                                                ^ help: remove extra angle bracket

error: aborting due to 7 previous errors