src/test/ui/error-codes/E0374.rs

   1 #![feature(coerce_unsized)]
   2 use std::ops::CoerceUnsized;
   3
   4 struct Foo<T: ?Sized> {
   5     a: i32,
   6 }
   7
   8 impl<T, U> CoerceUnsized<Foo<U>> for Foo<T> //~ ERROR E0374
   9     where T: CoerceUnsized<U> {}
  10
  11 fn main() {}