#![feature(staged_api)] #![stable(feature = "rust1", since = "1.0.0")] #[rustc_const_stable(feature = "foo", since = "0")] //~^ ERROR macros cannot have const stability attributes macro_rules! foo { () => {}; } #[rustc_const_unstable(feature = "bar", issue="none")] //~^ ERROR macros cannot have const stability attributes macro_rules! bar { () => {}; } fn main() {}