1 error[E0119]: conflicting implementations of trait `std::ops::FnOnce<()>` for type `&_`
2 --> $DIR/incoherent-assoc-imp-trait.rs:10:1
4 LL | impl<F> FnOnce<()> for &F {
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^
7 = note: conflicting implementation in crate `core`:
8 - impl<A, F> FnOnce<A> for &F
9 where F: Fn<A>, F: ?Sized;
11 error[E0210]: type parameter `F` must be used as the type parameter for some local type (e.g., `MyStruct<F>`)
12 --> $DIR/incoherent-assoc-imp-trait.rs:10:6
14 LL | impl<F> FnOnce<()> for &F {
15 | ^ type parameter `F` must be used as the type parameter for some local type
17 = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local
18 = note: only traits defined in the current crate can be implemented for a type parameter
20 error: aborting due to 2 previous errors
22 Some errors have detailed explanations: E0119, E0210.
23 For more information about an error, try `rustc --explain E0119`.