error[E0658]: macro unstable_macro! is unstable | |
--> $DIR/macro-stability.rs:21:5 | |
| | |
LL | unstable_macro!(); //~ ERROR: macro unstable_macro! is unstable | |
| ^^^^^^^^^^^^^^^^^^ | |
| | |
= help: add #![feature(unstable_macros)] to the crate attributes to enable | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0658`. |