error[E0308]: `match` arms have incompatible types --> $DIR/issue-81839.rs:11:14 | LL | / match num { LL | | 1 => { LL | | cx.answer_str("hi"); | | -------------------- this is found to be of type `()` LL | | } LL | | _ => cx.answer_str("hi"), | | ^^^^^^^^^^^^^^^^^^^ expected `()`, found future LL | | } | |_____- `match` arms have incompatible types | help: consider removing this semicolon | LL - cx.answer_str("hi"); LL + cx.answer_str("hi") | help: consider using a semicolon here, but this will discard any values in the match arms | LL | }; | + error: aborting due to previous error For more information about this error, try `rustc --explain E0308`.