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error[E0277]: the trait bound `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b)))> fn(&'^1_0.Named(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b)) ()): Foo` is not satisfied
--> $DIR/higher-ranked-fn-type.rs:20:5
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LL | called()
| ^^^^^^^^ unsatisfied trait bound
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= help: the trait `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b)))> Foo` is not implemented for `fn(&'^1_0.Named(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b)) ())`
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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