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cargo_macro_help
rustc_
attr_
parsing
1.99.0-nightly
(6f72b5dd5 2026-07-22)
In rustc_
attr_
parsing::
check_
cfg
rustc_attr_parsing
::
check_cfg
Function
cargo_
macro_
help
Copy item path
Source
fn cargo_macro_help(span:
Span
) ->
Option
<
UnexpectedCfgCargoMacroHelp
>