15 lines
577 B
Plaintext
15 lines
577 B
Plaintext
error[E0658]: The attribute `unknown` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
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--> $DIR/cfg-attr-unknown-attribute-macro-expansion.rs:13:27
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LL | #[cfg_attr(all(), unknown)] //~ ERROR `unknown` is currently unknown
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| ^^^^^^^
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...
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LL | foo!();
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| ------- in this macro invocation
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= help: add #![feature(custom_attribute)] to the crate attributes to enable
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0658`.
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