error[E0308]: `?` operator has incompatible types | |
--> $DIR/issue-100246.rs:28:24 | |
| | |
LL | let other: Other = downcast()?; | |
| ^^^^^^^^^^^ expected `Other`, found `&_` | |
| | |
= note: `?` operator cannot convert from `&_` to `Other` | |
= note: expected struct `Other` | |
found reference `&_` | |
error: aborting due to 1 previous error | |
For more information about this error, try `rustc --explain E0308`. |