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error[E0277]: the trait bound `for<'b> fn(&'b ()): Foo` is not satisfied
--> $DIR/higher-ranked-fn-type.rs:20:5
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LL | called()
| ^^^^^^^^ the trait `for<'b> Foo` is not implemented for `fn(&'b ())`
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help: this trait has no implementations, consider adding one
--> $DIR/higher-ranked-fn-type.rs:6:1
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LL | trait Foo {
| ^^^^^^^^^
note: required by a bound in `called`
--> $DIR/higher-ranked-fn-type.rs:12:25
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LL | fn called()
| ------ required by a bound in this function
LL | where
LL | for<'b> fn(&'b ()): Foo,
| ^^^ required by this bound in `called`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.
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