| error[E0506]: cannot assign to `a1` because it is borrowed | |
| --> $DIR/regions-pattern-typing-issue-19997.rs:7:13 | |
| | | |
| LL | match (&a1,) { | |
| | --- `a1` is borrowed here | |
| LL | (&ref b0,) => { | |
| LL | a1 = &f; | |
| | ^^^^^^^ `a1` is assigned to here but it was already borrowed | |
| LL | drop(b0); | |
| | -- borrow later used here | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0506`. |