2 files changed, 7 insertions, 3 deletions
diff --git a/src/libstd/sys/windows/net.rs b/src/libstd/sys/windows/net.rs
index e092faf4935..734268c70ac 100644
--- a/src/libstd/sys/windows/net.rs
+++ b/src/libstd/sys/windows/net.rs
@@ -36,7 +36,7 @@ pub fn init() {
                                 &mut data);
         assert_eq!(ret, 0);
 
-        rt::at_exit(|| { c::WSACleanup(); })
+        let _ = rt::at_exit(|| { c::WSACleanup(); });
     });
 }
 
diff --git a/src/libstd/sys/windows/thread_local.rs b/src/libstd/sys/windows/thread_local.rs
index 1359803070a..c908c791247 100644
--- a/src/libstd/sys/windows/thread_local.rs
+++ b/src/libstd/sys/windows/thread_local.rs
@@ -133,9 +133,8 @@ unsafe fn init_dtors() {
     if !DTORS.is_null() { return }
 
     let dtors = box Vec::<(Key, Dtor)>::new();
-    DTORS = boxed::into_raw(dtors);
 
-    rt::at_exit(move|| {
+    let res = rt::at_exit(move|| {
         DTOR_LOCK.lock();
         let dtors = DTORS;
         DTORS = 1 as *mut _;
@@ -143,6 +142,11 @@ unsafe fn init_dtors() {
         assert!(DTORS as uint == 1); // can't re-init after destructing
         DTOR_LOCK.unlock();
     });
+    if res.is_ok() {
+        DTORS = boxed::into_raw(dtors);
+    } else {
+        DTORS = 1 as *mut _;
+    }
 }
 
 unsafe fn register_dtor(key: Key, dtor: Dtor) {