2 files changed, 2 insertions, 2 deletions
diff --git a/library/std/src/sys/thread_local/key/racy.rs b/library/std/src/sys/thread_local/key/racy.rs
index 69f11458c32..97df8997b80 100644
--- a/library/std/src/sys/thread_local/key/racy.rs
+++ b/library/std/src/sys/thread_local/key/racy.rs
@@ -30,7 +30,7 @@ const KEY_SENTVAL: usize = 0;
 const KEY_SENTVAL: usize = libc::PTHREAD_KEYS_MAX + 1;
 
 impl LazyKey {
-    #[rustc_const_unstable(feature = "thread_local_internals", issue = "none")]
+    #[cfg_attr(bootstrap, rustc_const_unstable(feature = "thread_local_internals", issue = "none"))]
     pub const fn new(dtor: Option<unsafe extern "C" fn(*mut u8)>) -> LazyKey {
         LazyKey { key: atomic::AtomicUsize::new(KEY_SENTVAL), dtor }
     }
diff --git a/library/std/src/sys/thread_local/os.rs b/library/std/src/sys/thread_local/os.rs
index f5a2aaa6c6a..58f291ffdb9 100644
--- a/library/std/src/sys/thread_local/os.rs
+++ b/library/std/src/sys/thread_local/os.rs
@@ -60,7 +60,7 @@ struct Value<T: 'static> {
 }
 
 impl<T: 'static> Storage<T> {
-    #[rustc_const_unstable(feature = "thread_local_internals", issue = "none")]
+    #[cfg_attr(bootstrap, rustc_const_unstable(feature = "thread_local_internals", issue = "none"))]
     pub const fn new() -> Storage<T> {
         Storage { key: LazyKey::new(Some(destroy_value::<T>)), marker: PhantomData }
     }