error[E0382]: use of moved value: `f` --> $DIR/issue-12127.rs:11:9 | LL | f(); | --- `f` moved due to this call LL | f(); | ^ value used here after move | note: this value implements `FnOnce`, which causes it to be moved when called --> $DIR/issue-12127.rs:10:9 | LL | f(); | ^ = note: move occurs because `f` has type `[closure@$DIR/issue-12127.rs:8:24: 8:30]`, which does not implement the `Copy` trait error: aborting due to previous error For more information about this error, try `rustc --explain E0382`.