rust/tests/ui/type-alias-impl-trait/incoherent-assoc-imp-trait....

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error[E0210]: type parameter `F` must be used as the type parameter for some local type (e.g., `MyStruct<F>`)
--> $DIR/incoherent-assoc-imp-trait.rs:10:6
|
LL | impl<F> FnOnce<()> for &F {
| ^ type parameter `F` must be used as the type parameter for some local type
|
= note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local
= note: only traits defined in the current crate can be implemented for a type parameter
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0210`.