error: unmatched angle brackets
  --> $DIR/issue-54521-2.rs:11:25
   |
LL |     let _ = Vec::<usize>>>>>::new();
   |                         ^^^^ help: remove extra angle brackets

error: unmatched angle brackets
  --> $DIR/issue-54521-2.rs:14:25
   |
LL |     let _ = Vec::<usize>>>>::new();
   |                         ^^^ help: remove extra angle brackets

error: unmatched angle brackets
  --> $DIR/issue-54521-2.rs:17:25
   |
LL |     let _ = Vec::<usize>>>::new();
   |                         ^^ help: remove extra angle brackets

error: unmatched angle bracket
  --> $DIR/issue-54521-2.rs:20:25
   |
LL |     let _ = Vec::<usize>>::new();
   |                         ^ help: remove extra angle bracket

error: aborting due to 4 previous errors