error[E0658]: `#[doc(auto_cfg)]` is experimental
  --> $DIR/feature-gate-doc_cfg.rs:1:1
   |
LL | #![doc(auto_cfg)]
   | ^^^^^^^^^^^^^^^^^
   |
   = note: see issue #43781 <https://github.com/rust-lang/rust/issues/43781> for more information
   = help: add `#![feature(doc_cfg)]` 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   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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]: `#[doc(auto_cfg)]` is experimental
  --> $DIR/feature-gate-doc_cfg.rs:2:1
   |
LL | #![doc(auto_cfg(false))]
   | ^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #43781 <https://github.com/rust-lang/rust/issues/43781> for more information
   = help: add `#![feature(doc_cfg)]` 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   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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]: `#[doc(auto_cfg)]` is experimental
  --> $DIR/feature-gate-doc_cfg.rs:3:1
   |
LL | #![doc(auto_cfg(true))]
   | ^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #43781 <https://github.com/rust-lang/rust/issues/43781> for more information
   = help: add `#![feature(doc_cfg)]` 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   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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]: `#[doc(auto_cfg)]` is experimental
  --> $DIR/feature-gate-doc_cfg.rs:4:1
   |
LL | #![doc(auto_cfg(hide(feature = "solecism")))]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #43781 <https://github.com/rust-lang/rust/issues/43781> for more information
   = help: add `#![feature(doc_cfg)]` 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   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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]: `#[doc(auto_cfg)]` is experimental
  --> $DIR/feature-gate-doc_cfg.rs:5:1
   |
LL | #![doc(auto_cfg(show(feature = "bla")))]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #43781 <https://github.com/rust-lang/rust/issues/43781> for more information
   = help: add `#![feature(doc_cfg)]` 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   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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]: `#[doc(cfg)]` is experimental
  --> $DIR/feature-gate-doc_cfg.rs:6:1
   |
LL | #![doc(cfg(feature = "solecism"))]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #43781 <https://github.com/rust-lang/rust/issues/43781> for more information
   = help: add `#![feature(doc_cfg)]` 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 6 previous errors

For more information about this error, try `rustc --explain E0658`.