Confusing error message: "can't qualify macro invocation with pub" when struct keyword missing #55403

pub LexicalEnv<'a>

error: can't qualify macro invocation with `pub`
 --> src/lib.rs:1:1
  |
1 | pub LexicalEnv<'a>
  | ^^^
  |
  = help: try adjusting the macro to put `pub` inside the invocation

error: expected one of `!` or `::`, found `<`
 --> src/lib.rs:1:15
  |
1 | pub LexicalEnv<'a>
  |               ^ expected one of `!` or `::` here