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error[E0382]: use of moved value: `blk`
--> $DIR/fnonce-call-twice-error.rs:7:5
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LL | fn foo<F: FnOnce()>(blk: F) {
| --- move occurs because `blk` has type `F`, which does not implement the `Copy` trait
LL | blk();
| ----- `blk` moved due to this call
LL | blk();
| ^^^ value used here after move
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note: `FnOnce` closures can only be called once
--> $DIR/fnonce-call-twice-error.rs:5:11
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LL | fn foo<F: FnOnce()>(blk: F) {
| ^^^^^^^^ `F` is made to be an `FnOnce` closure here
LL | blk();
| ----- this value implements `FnOnce`, which causes it to be moved when called
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0382`.
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