| error[E0308]: mismatched types | |
| --> $DIR/issue-89275.rs:28:29 | |
| | | |
| LL | let other: &mut Other = downcast(); | |
| | ---------- ^^^^^^^^^^ types differ in mutability | |
| | | | |
| | expected due to this | |
| | | |
| = note: expected mutable reference `&mut Other` | |
| found reference `&_` | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0308`. |