32 lines
1.5 KiB
Plaintext
32 lines
1.5 KiB
Plaintext
error[E0658]: the `#[rustc_variance]` attribute is just used for rustc unit tests and will never be stable
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--> $DIR/feature-gate-rustc-attrs-1.rs:3:1
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LL | #[rustc_variance]
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| ^^^^^^^^^^^^^^^^^
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= help: add `#![feature(rustc_attrs)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0658]: the `#[rustc_error]` attribute is just used for rustc unit tests and will never be stable
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--> $DIR/feature-gate-rustc-attrs-1.rs:4:1
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LL | #[rustc_error]
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| ^^^^^^^^^^^^^^
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= help: add `#![feature(rustc_attrs)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0658]: the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to document guaranteed niche optimizations in libcore and libstd and will never be stable
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(note that the compiler does not even check whether the type indeed is being non-null-optimized; it is your responsibility to ensure that the attribute is only used on types that are optimized)
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--> $DIR/feature-gate-rustc-attrs-1.rs:5:1
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LL | #[rustc_nonnull_optimization_guaranteed]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: add `#![feature(rustc_attrs)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0658`.
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