1 #[derive(Copy(Bad))] 2 //~^ ERROR traits in `#[derive(...)]` don't accept arguments 3 //~| ERROR the trait bound 4 struct Test1; 5 6 #[derive(Copy="bad")] 7 //~^ ERROR traits in `#[derive(...)]` don't accept values 8 //~| ERROR the trait bound 9 struct Test2; 10 11 #[derive] //~ ERROR malformed `derive` attribute input 12 struct Test4; 13 main()14fn main() {} 15