mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-02 03:33:59 +00:00
31 lines
1.3 KiB
Plaintext
31 lines
1.3 KiB
Plaintext
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:3:1
|
|
|
|
|
LL | #[rustc_variance]
|
|
| ^^^^^^^^^^^^^^^^^
|
|
|
|
|
= help: add `#![feature(rustc_attrs)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
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:4:1
|
|
|
|
|
LL | #[rustc_error]
|
|
| ^^^^^^^^^^^^^^
|
|
|
|
|
= help: add `#![feature(rustc_attrs)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
error[E0658]: the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to enable niche optimizations in libcore and libstd and will never be stable
|
|
--> $DIR/feature-gate-rustc-attrs-1.rs:5:1
|
|
|
|
|
LL | #[rustc_nonnull_optimization_guaranteed]
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= help: add `#![feature(rustc_attrs)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
|
|
error: aborting due to 3 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0658`.
|