| error[E0107]: enum takes 2 generic arguments but 1 generic argument was supplied | |
| --> $DIR/issue-65159.rs:5:20 | |
| | | |
| LL | async fn copy() -> Result<()> | |
| | ^^^^^^ -- supplied 1 generic argument | |
| | | | |
| | expected 2 generic arguments | |
| | | |
| help: add missing generic argument | |
| | | |
| LL | async fn copy() -> Result<(), E> | |
| | +++ | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0107`. |