| error[E0277]: `?` couldn't convert the error to `()` | |
| --> $DIR/issue-32709.rs:4:11 | |
| | | |
| LL | Err(5)?; | |
| | ^ the trait `std::convert::From<{integer}>` is not implemented for `()` | |
| | | |
| = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait | |
| = note: required by `std::convert::From::from` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0277`. |