error[E0658]: the `#[rustc_variance]` attribute is just used for rustc unit tests and will never be stable
- --> $DIR/feature-gate-rustc-attrs-1.rs:5:1
+ --> $DIR/feature-gate-rustc-attrs-1.rs:3:1
|
LL | #[rustc_variance]
| ^^^^^^^^^^^^^^^^^
= help: add `#![feature(rustc_attrs)]` to the crate attributes to enable
error[E0658]: the `#[rustc_error]` attribute is just used for rustc unit tests and will never be stable
- --> $DIR/feature-gate-rustc-attrs-1.rs:6:1
+ --> $DIR/feature-gate-rustc-attrs-1.rs:4:1
|
LL | #[rustc_error]
| ^^^^^^^^^^^^^^
= help: add `#![feature(rustc_attrs)]` to the crate attributes to enable
error[E0658]: the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to enable niche optimizations in libcore and will never be stable
- --> $DIR/feature-gate-rustc-attrs-1.rs:7:1
+ --> $DIR/feature-gate-rustc-attrs-1.rs:5:1
|
LL | #[rustc_nonnull_optimization_guaranteed]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^