error: no rules expected the token `(`
 --> $DIR/invalid.rs:5:14
  |
5 |         #[pin()] //~ ERROR no rules expected the token `(`
  |              ^ no rules expected this token in macro call

error: no rules expected the token `#`
  --> $DIR/invalid.rs:20:9
   |
20 |         #[pin] //~ ERROR no rules expected the token `#`
   |         ^ no rules expected this token in macro call

error: cannot find attribute `pin` in this scope
  --> $DIR/invalid.rs:11:7
   |
11 |     #[pin] //~ ERROR cannot find attribute `pin` in this scope
   |       ^^^