add missing feature

diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs
index 575903d576a23552b09d592fbb0301e6ffac1917..8c8e7cb760e5a11bfc4df58794f43c83f4a26b3e 100644 (file)
--- a/src/libstd/lib.rs
+++ b/src/libstd/lib.rs
@@ -310,6 +310,7 @@
 #![feature(panic_info_message)]
 #![feature(non_exhaustive)]
 #![feature(alloc_layout_extra)]
+#![feature(maybe_uninit)]
 
 #![default_lib_allocator]