From a81027515069ac500dbbb6ea57bfb72a9eb948ac Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Tue, 27 Nov 2018 13:48:40 +0100
Subject: [PATCH] fix build

---
 src/libstd/sys/windows/mutex.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libstd/sys/windows/mutex.rs b/src/libstd/sys/windows/mutex.rs
index 3ba19a40d48b..a8eb82a8a664 100644
--- a/src/libstd/sys/windows/mutex.rs
+++ b/src/libstd/sys/windows/mutex.rs
@@ -164,7 +164,7 @@ unsafe impl Sync for ReentrantMutex {}
 
 impl ReentrantMutex {
     pub fn uninitialized() -> ReentrantMutex {
-        MaybeUninit::uninitialized()
+        ReentrantMutex { inner: MaybeUninit::uninitialized() }
     }
 
     pub unsafe fn init(&mut self) {