1 error[E0382]: use of moved value: `blk`
2 --> $DIR/once-cant-call-twice-on-heap.rs:8:5
4 LL | fn foo<F:FnOnce()>(blk: F) {
5 | --- move occurs because `blk` has type `F`, which does not implement the `Copy` trait
7 | ----- `blk` moved due to this call
9 | ^^^ value used here after move
11 note: this value implements `FnOnce`, which causes it to be moved when called
12 --> $DIR/once-cant-call-twice-on-heap.rs:7:5
16 help: consider further restricting this bound
18 LL | fn foo<F:FnOnce() + Copy>(blk: F) {
21 error: aborting due to previous error
23 For more information about this error, try `rustc --explain E0382`.