Enable doc_auto_cfg when generating documentation

futures/src/backend/native.rs

@@ -1,16 +1,12 @@
 //! Backends that are only available in native platforms: Windows, macOS, or Linux.
-#[cfg_attr(docsrs, doc(cfg(feature = "tokio",)))]
 #[cfg(feature = "tokio")]
 pub mod tokio;
 
-#[cfg_attr(docsrs, doc(cfg(feature = "async-std",)))]
 #[cfg(feature = "async-std")]
 pub mod async_std;
 
-#[cfg_attr(docsrs, doc(cfg(feature = "smol",)))]
 #[cfg(feature = "smol")]
 pub mod smol;
 
-#[cfg_attr(docsrs, doc(cfg(feature = "thread-pool",)))]
 #[cfg(feature = "thread-pool")]
 pub mod thread_pool;

futures/src/backend/native/smol.rs

@@ -1,9 +1,7 @@
 //! A `smol` backend.
-
 use futures::Future;
 
 /// A `smol` executor.
-#[cfg_attr(docsrs, doc(cfg(feature = "smol")))]
 #[derive(Debug)]
 pub struct Executor;
 

futures/src/backend/native/thread_pool.rs

@@ -2,7 +2,6 @@
 use futures::Future;
 
 /// A thread pool executor for futures.
-#[cfg_attr(docsrs, doc(cfg(feature = "thread-pool")))]
 pub type Executor = futures::executor::ThreadPool;
 
 impl crate::Executor for Executor {

futures/src/lib.rs

@@ -16,7 +16,7 @@
 )]
 #![forbid(unsafe_code, rust_2018_idioms)]
 #![allow(clippy::inherent_to_string, clippy::type_complexity)]
-#![cfg_attr(docsrs, feature(doc_cfg))]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 pub use futures;
 pub use iced_core as core;