fixes

Signed-off-by: Yoshua Wuyts <yoshuawuyts@gmail.com>

Author: yoshuawuyts

src/future/future/mod.rs

@@ -1,8 +1,10 @@
-mod select;
-mod try_select;
+cfg_unstable! {
+    mod select;
+    mod try_select;
 
-use select::Select;
-use try_select::TrySelect;
+    use select::Select;
+    use try_select::TrySelect;
+}
 
 extension_trait! {
     use std::pin::Pin;
@@ -135,11 +137,13 @@ extension_trait! {
             # });
             ```
         "#]
+        #[cfg(any(feature = "unstable", feature = "docs"))]
+        #[cfg_attr(feature = "docs", doc(cfg(unstable)))]
         fn select<F>(self, other: F) ->
-            impl Future<Output = Self::Output> [Select<Self, F>]
-            where
-                Self: Sized + Future,
-                F: std::future::Future<Output = <Self as Future>::Output>,
+        impl Future<Output = Self::Output> [Select<Self, F>]
+        where
+            Self: Sized + Future,
+            F: std::future::Future<Output = <Self as Future>::Output>,
         {
             Select::new(self, other)
         }
@@ -172,12 +176,14 @@ extension_trait! {
             # Ok(()) }) }
             ```
         "#]
+        #[cfg(any(feature = "unstable", feature = "docs"))]
+        #[cfg_attr(feature = "docs", doc(cfg(unstable)))]
         fn try_select<F, T, E>(self, other: F) ->
-            impl Future<Output = Self::Output> [TrySelect<Self, F>]
-            where
-                Self: Sized,
-                Self: Future<Output = Result<T, E>>,
-                F: Future<Output = Self::Output>,
+        impl Future<Output = Self::Output> [TrySelect<Self, F>]
+        where
+            Self: Sized,
+            Self: Future<Output = Result<T, E>>,
+            F: Future<Output = Self::Output>,
         {
             TrySelect::new(self, other)
         }