error[E0594]: cannot assign to `*x`, which is behind a `&` reference | |
--> $DIR/let-else-binding-immutable.rs:9:5 | |
| | |
LL | *x += 1; | |
| ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written | |
error: aborting due to 1 previous error | |
For more information about this error, try `rustc --explain E0594`. |