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-rw-r--r--library/std/src/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 65b8df42996..ba76ee31b42 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -270,6 +270,7 @@
 #![feature(duration_checked_float)]
 #![feature(duration_constants)]
 #![feature(exact_size_is_empty)]
+#![feature(exclusive_wrapper)]
 #![feature(extend_one)]
 #![feature(float_minimum_maximum)]
 #![feature(hasher_prefixfree_extras)]