2 #![feature(staged_api)]
3 #![stable(feature = "test", since = "0")]
5 #[stable(feature = "test", since = "0")]
6 pub struct A<T>(pub T);
8 #[stable(feature = "test", since = "0")]
9 pub struct B<T>(#[stable(feature = "test", since = "0")] pub T);
12 // Make sure the field is used to fill the stability cache