error[E0317]: if may be missing an else clause --> $DIR/issue-19991.rs:5:5 | LL | / if let Some(homura) = Some("madoka") { LL | | LL | | LL | | LL | | 765 LL | | }; | |_____^ expected (), found integer | = note: expected type `()` found type `{integer}` error: aborting due to previous error For more information about this error, try `rustc --explain E0317`.