5 files changed, 7 insertions, 7 deletions
diff --git a/src/libstd/sync/barrier.rs b/src/libstd/sync/barrier.rs
index b8e83dced8d..fc4fd4ce92b 100644
--- a/src/libstd/sync/barrier.rs
+++ b/src/libstd/sync/barrier.rs
@@ -55,7 +55,7 @@ struct BarrierState {
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct BarrierWaitResult(bool);
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for Barrier {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("Barrier { .. }")
@@ -110,7 +110,7 @@ impl Barrier {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for BarrierWaitResult {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_struct("BarrierWaitResult")
diff --git a/src/libstd/sync/condvar.rs b/src/libstd/sync/condvar.rs
index 5c85c4879a8..7ee1c98565c 100644
--- a/src/libstd/sync/condvar.rs
+++ b/src/libstd/sync/condvar.rs
@@ -240,7 +240,7 @@ impl Condvar {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for Condvar {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("Condvar { .. }")
diff --git a/src/libstd/sync/mutex.rs b/src/libstd/sync/mutex.rs
index 2efddeb4610..0d6ad5e38e9 100644
--- a/src/libstd/sync/mutex.rs
+++ b/src/libstd/sync/mutex.rs
@@ -428,7 +428,7 @@ impl<'a, T: ?Sized> Drop for MutexGuard<'a, T> {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl<'a, T: ?Sized + fmt::Debug> fmt::Debug for MutexGuard<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_struct("MutexGuard")
diff --git a/src/libstd/sync/once.rs b/src/libstd/sync/once.rs
index a9747639aac..ba993751391 100644
--- a/src/libstd/sync/once.rs
+++ b/src/libstd/sync/once.rs
@@ -330,7 +330,7 @@ impl Once {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl fmt::Debug for Once {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad("Once { .. }")
diff --git a/src/libstd/sync/rwlock.rs b/src/libstd/sync/rwlock.rs
index adbb98e4b1f..a3db0adeda0 100644
--- a/src/libstd/sync/rwlock.rs
+++ b/src/libstd/sync/rwlock.rs
@@ -361,7 +361,7 @@ impl<'rwlock, T: ?Sized> RwLockWriteGuard<'rwlock, T> {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl<'a, T: fmt::Debug> fmt::Debug for RwLockReadGuard<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_struct("RwLockReadGuard")
@@ -370,7 +370,7 @@ impl<'a, T: fmt::Debug> fmt::Debug for RwLockReadGuard<'a, T> {
     }
 }
 
-#[stable(feature = "std_debug", since = "1.15.0")]
+#[stable(feature = "std_debug", since = "1.16.0")]
 impl<'a, T: fmt::Debug> fmt::Debug for RwLockWriteGuard<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_struct("RwLockWriteGuard")