src/test/ui/once-cant-call-twice-on-heap.stderr

   1 error[E0382]: use of moved value: `blk`
   2   --> $DIR/once-cant-call-twice-on-heap.rs:9:5
   3    |
   4 LL | fn foo<F:FnOnce()>(blk: F) {
   5    |                    --- move occurs because `blk` has type `F`, which does not implement the `Copy` trait
   6 LL |     blk();
   7    |     --- value moved here
   8 LL |     blk();
   9    |     ^^^ value used here after move
  10    |
  11 help: consider further restricting this bound
  12    |
  13 LL | fn foo<F:FnOnce() + Copy>(blk: F) {
  14    |                   ^^^^^^
  15
  16 error: aborting due to previous error
  17
  18 For more information about this error, try `rustc --explain E0382`.