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`.