| error[E0308]: `?` operator has incompatible types |
| --> $DIR/issue-51632-try-desugar-incompatible-types.rs:8:5 |
| | |
| LL | missing_discourses()? |
| | ^^^^^^^^^^^^^^^^^^^^^ expected `Result<isize, ()>`, found `isize` |
| | |
| = note: `?` operator cannot convert from `isize` to `Result<isize, ()>` |
| = note: expected enum `Result<isize, ()>` |
| found type `isize` |
| help: try removing this `?` |
| | |
| LL - missing_discourses()? |
| LL + missing_discourses() |
| | |
| help: try wrapping the expression in `Ok` |
| | |
| LL | Ok(missing_discourses()?) |
| | +++ + |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0308`. |