rollup merge of #21787: alexcrichton/std-env

Conflicts:
	src/libstd/sys/unix/backtrace.rs
	src/libstd/sys/unix/os.rs

2 files changed, 0 insertions, 14 deletions

diff --git a/src/libstd/sys/common/mutex.rs b/src/libstd/sys/common/mutex.rs
index 9aea0fb3b31..0ca22826700 100644
--- a/src/libstd/sys/common/mutex.rs
+++ b/src/libstd/sys/common/mutex.rs
@@ -24,13 +24,6 @@ unsafe impl Sync for Mutex {}
 pub const MUTEX_INIT: Mutex = Mutex(imp::MUTEX_INIT);
 
 impl Mutex {
-    /// Creates a newly initialized mutex.
-    ///
-    /// Behavior is undefined if the mutex is moved after the first method is
-    /// called on the mutex.
-    #[inline]
-    pub unsafe fn new() -> Mutex { Mutex(imp::Mutex::new()) }
-
     /// Lock the mutex blocking the current thread until it is available.
     ///
     /// Behavior is undefined if the mutex has been moved between this and any
diff --git a/src/libstd/sys/common/rwlock.rs b/src/libstd/sys/common/rwlock.rs
index df016b9e293..fe374e1fd78 100644
--- a/src/libstd/sys/common/rwlock.rs
+++ b/src/libstd/sys/common/rwlock.rs
@@ -21,13 +21,6 @@ pub struct RWLock(imp::RWLock);
 pub const RWLOCK_INIT: RWLock = RWLock(imp::RWLOCK_INIT);
 
 impl RWLock {
-    /// Creates a new instance of an RWLock.
-    ///
-    /// Usage of an RWLock is undefined if it is moved after its first use (any
-    /// function calls below).
-    #[inline]
-    pub unsafe fn new() -> RWLock { RWLock(imp::RWLock::new()) }
-
     /// Acquire shared access to the underlying lock, blocking the current
     /// thread to do so.
     ///