1 error[E0658]: #[doc(cfg(...))] is experimental (see issue #43781)
2 --> $DIR/feature-gate-doc_cfg.rs:11:1
4 11 | #[doc(cfg(unix))] //~ ERROR: #[doc(cfg(...))] is experimental
7 = help: add #![feature(doc_cfg)] to the crate attributes to enable
9 error: aborting due to previous error