| error[E0107]: wrong number of type arguments: expected 2, found 1 | |
| --> $DIR/issue-65159.rs:5:20 | |
| | | |
| LL | async fn copy() -> Result<()> | |
| | ^^^^^^^^^^ expected 2 type arguments | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0107`. |