| error[E0408]: variable `y` is not bound in all patterns | |
| --> $DIR/E0408.rs:5:19 | |
| | | |
| LL | Some(y) | None => {} | |
| | - ^^^^ pattern doesn't bind `y` | |
| | | | |
| | variable not in all patterns | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0408`. |