error[E0308]: mismatched types --> $DIR/move-closure.rs:5:17 | LL | let x: () = move || (); | -- ^^^^^^^^^^ expected `()`, found closure | | | expected due to this | = note: expected unit type `()` found closure `[closure@$DIR/move-closure.rs:5:17: 5:27]` help: use parentheses to call this closure | LL | let x: () = (move || ())(); | + +++ error: aborting due to previous error For more information about this error, try `rustc --explain E0308`.