error: macros cannot have const stability attributes --> $DIR/const-stability-on-macro.rs:4:1 | LL | #[rustc_const_stable(feature = "foo", since = "0")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid const stability attribute LL | LL | macro_rules! foo { | ---------------- const stability attribute affects this macro error: macros cannot have const stability attributes --> $DIR/const-stability-on-macro.rs:10:1 | LL | #[rustc_const_unstable(feature = "bar", issue="none")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid const stability attribute LL | LL | macro_rules! bar { | ---------------- const stability attribute affects this macro error: aborting due to 2 previous errors