error[E0308]: mismatched types --> $DIR/old-closure-expression-remove-semicolon.rs:8:19 | LL | let _x: i32 = { | ___________________^ LL | | LL | | foo(); | | - help: remove this semicolon to return this value LL | | }; | |_____^ expected `i32`, found `()` error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0308`.