error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
  --> tests/ui/compile-fail/pinned_drop/unexpected_generics.rs:10:9
   |
10 | impl<T> PinnedDrop<T> for Foo<T> {
   |         ^^^^^^^^^^--- help: remove the unnecessary generics
   |         |
   |         expected 0 generic arguments
   |
note: trait defined here, with 0 generic parameters
  --> src/lib.rs
   |
   | pub unsafe trait PinnedDrop: __internal::HasPinData {
   |                  ^^^^^^^^^^