error: reserved name
 --> tests/ui/reserved_name.rs:3:12
  |
3 |     struct UniquePtr {
  |            ^^^^^^^^^

error: reserved name
 --> tests/ui/reserved_name.rs:8:14
  |
8 |         type Box;
  |              ^^^

error: reserved name
  --> tests/ui/reserved_name.rs:12:14
   |
12 |         type String;
   |              ^^^^^^