| error[E0506]: cannot assign to `a1` because it is borrowed | |
| --> $DIR/regions-pattern-typing-issue-19997.rs:10:13 | |
| | | |
| LL | match (&a1,) { | |
| | --- borrow of `a1` occurs here | |
| LL | (&ref b0,) => { | |
| LL | a1 = &f; | |
| | ^^^^^^^ assignment to borrowed `a1` occurs here | |
| LL | | |
| LL | drop(b0); | |
| | -- borrow later used here | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0506`. |