Add stability attribute

Author: NathanRoyer

library/std/src/sys/custom/alloc.rs

@@ -1,3 +1,5 @@
+#![unstable(issue = "none", feature = "std_internals")]
+
 use crate::alloc::{GlobalAlloc, Layout, System};
 use crate::os::custom::alloc::IMPL;
 use crate::sync::Mutex;

library/std/src/sys/custom/env.rs

@@ -1,3 +1,5 @@
+#![unstable(issue = "none", feature = "std_internals")]
+
 pub mod os {
     pub const FAMILY: &str = "";
     pub const OS: &str = "custom";

library/std/src/sys/custom/fs.rs

@@ -1,3 +1,4 @@
+#![unstable(issue = "none", feature = "std_internals")]
 #![allow(missing_docs)]
 
 use crate::custom_os_impl;

library/std/src/sys/custom/mod.rs

@@ -1,5 +1,7 @@
 //! System bindings for custom platforms
 
+#![unstable(issue = "none", feature = "std_internals")]
+
 use crate::custom_os_impl;
 use crate::io as std_io;
 

library/std/src/sys/custom/net.rs

@@ -1,3 +1,4 @@
+#![unstable(issue = "none", feature = "std_internals")]
 #![allow(missing_docs)]
 
 use crate::custom_os_impl;

library/std/src/sys/custom/os.rs

@@ -1,3 +1,4 @@
+#![unstable(issue = "none", feature = "std_internals")]
 #![allow(missing_docs)]
 
 use crate::custom_os_impl;

library/std/src/sys/custom/pipe.rs

@@ -1,3 +1,5 @@
+#![unstable(issue = "none", feature = "std_internals")]
+
 use crate::io::{self, BorrowedCursor, IoSlice, IoSliceMut};
 
 pub type AnonPipe = Box<dyn AnonPipeApi>;

library/std/src/sys/custom/process.rs

@@ -1,3 +1,4 @@
+#![unstable(issue = "none", feature = "std_internals")]
 #![allow(missing_docs)]
 
 use crate::custom_os_impl;

library/std/src/sys/custom/stdio.rs

@@ -1,3 +1,4 @@
+#![unstable(issue = "none", feature = "std_internals")]
 use crate::custom_os_impl;
 use crate::io;
 

library/std/src/sys/custom/thread.rs

@@ -1,3 +1,4 @@
+#![unstable(issue = "none", feature = "std_internals")]
 #![allow(missing_docs)]
 
 use crate::custom_os_impl;