| error[E0594]: cannot assign to `fancy_ref.num`, which is behind a `&` reference | |
| --> $DIR/E0389.rs:8:5 | |
| | | |
| LL | fancy_ref.num = 6; | |
| | ^^^^^^^^^^^^^^^^^ `fancy_ref` is a `&` reference, so the data it refers to cannot be written | |
| | | |
| help: consider changing this to be a mutable reference | |
| | | |
| LL | let fancy_ref = &mut (&mut fancy); | |
| | +++ | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0594`. |