rust/tests/ui/unboxed-closures/non-tupled-arg-mismatch.stderr
2023-01-11 09:32:08 +00:00

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error[E0059]: type parameter to bare `Fn` trait must be a tuple
--> $DIR/non-tupled-arg-mismatch.rs:3:9
|
LL | fn a<F: Fn<usize>>(f: F) {}
| ^^^^^^^^^ the trait `Tuple` is not implemented for `usize`
|
note: required by a bound in `Fn`
--> $SRC_DIR/core/src/ops/function.rs:LL:COL
error: aborting due to previous error
For more information about this error, try `rustc --explain E0059`.