| error[E0503]: cannot use `x` because it was mutably borrowed | |
| --> $DIR/borrowck-non-exhaustive.rs:12:11 | |
| | | |
| LL | let y = &mut x; | |
| | ------ `x` is borrowed here | |
| LL | match x { | |
| | ^ use of borrowed `x` | |
| ... | |
| LL | drop(y); | |
| | - borrow later used here | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0503`. |