rollup merge of #20157: alexcrichton/issue-20068

1 files changed, 3 insertions, 2 deletions

diff --git a/src/libstd/sys/common/helper_thread.rs b/src/libstd/sys/common/helper_thread.rs
index 9ef1c33312f..c4c093dcb32 100644
--- a/src/libstd/sys/common/helper_thread.rs
+++ b/src/libstd/sys/common/helper_thread.rs
@@ -20,12 +20,13 @@
 //! can be created in the future and there must be no active timers at that
 //! time.
 
-use prelude::*;
+use prelude::v1::*;
 
 use cell::UnsafeCell;
+use comm::{channel, Sender, Receiver};
 use mem;
-use sync::{StaticMutex, StaticCondvar};
 use rt;
+use sync::{StaticMutex, StaticCondvar};
 use sys::helper_signal;
 
 use thread::Thread;