error[E0382]: use of moved value: `tick` --> $DIR/unboxed-closures-infer-fnonce-move-call-twice.rs:10:5 | LL | tick(); | ------ `tick` moved due to this call LL | tick(); | ^^^^ value used here after move | note: closure cannot be invoked more than once because it moves the variable `counter` out of its environment --> $DIR/unboxed-closures-infer-fnonce-move-call-twice.rs:8:34 | LL | let tick = move || mem::drop(counter); | ^^^^^^^ note: this value implements `FnOnce`, which causes it to be moved when called --> $DIR/unboxed-closures-infer-fnonce-move-call-twice.rs:9:5 | LL | tick(); | ^^^^ error: aborting due to previous error For more information about this error, try `rustc --explain E0382`.