src/test/ui/error-codes/E0120.rs - third_party/rust - Git at Google

 trait MyTrait { fn foo() {} }

 impl Drop for dyn MyTrait {
               //~^ ERROR E0120
     fn drop(&mut self) {}
 }

 fn main() {
 }
	trait MyTrait { fn foo() {} }

	impl Drop for dyn MyTrait {
	//~^ ERROR E0120
	fn drop(&mut self) {}
	}

	fn main() {
	}