| error[E0658]: `concat_idents` is not stable enough for use and is subject to change (see issue #29599) |
| --> $DIR/feature-gate-concat_idents3.rs:17:20 |
| | |
| 17 | assert_eq!(10, concat_idents!(X, Y_1)); //~ ERROR `concat_idents` is not stable |
| | ^^^^^^^^^^^^^^^^^^^^^^ |
| | |
| = help: add #![feature(concat_idents)] to the crate attributes to enable |
| |
| error[E0658]: `concat_idents` is not stable enough for use and is subject to change (see issue #29599) |
| --> $DIR/feature-gate-concat_idents3.rs:18:20 |
| | |
| 18 | assert_eq!(20, concat_idents!(X, Y_2)); //~ ERROR `concat_idents` is not stable |
| | ^^^^^^^^^^^^^^^^^^^^^^ |
| | |
| = help: add #![feature(concat_idents)] to the crate attributes to enable |
| |
| error: aborting due to 2 previous errors |
| |