3 files changed, 6 insertions, 6 deletions
diff --git a/src/liballoc/btree/node.rs b/src/liballoc/btree/node.rs
index 06d3a113b94..8cea6c482c3 100644
--- a/src/liballoc/btree/node.rs
+++ b/src/liballoc/btree/node.rs
@@ -1037,7 +1037,7 @@ impl<'a, K: 'a, V: 'a, NodeType>
         Handle<NodeRef<marker::Mut<'a>, K, V, NodeType>, marker::KV> {
 
     pub fn into_kv_mut(self) -> (&'a mut K, &'a mut V) {
-        let (mut keys, mut vals) = self.node.into_slices_mut();
+        let (keys, vals) = self.node.into_slices_mut();
         unsafe {
             (keys.get_unchecked_mut(self.idx), vals.get_unchecked_mut(self.idx))
         }
@@ -1047,7 +1047,7 @@ impl<'a, K: 'a, V: 'a, NodeType>
 impl<'a, K, V, NodeType> Handle<NodeRef<marker::Mut<'a>, K, V, NodeType>, marker::KV> {
     pub fn kv_mut(&mut self) -> (&mut K, &mut V) {
         unsafe {
-            let (mut keys, mut vals) = self.node.reborrow_mut().into_slices_mut();
+            let (keys, vals) = self.node.reborrow_mut().into_slices_mut();
             (keys.get_unchecked_mut(self.idx), vals.get_unchecked_mut(self.idx))
         }
     }
diff --git a/src/liballoc/vec.rs b/src/liballoc/vec.rs
index da47ca50983..160c0ba2ab0 100644
--- a/src/liballoc/vec.rs
+++ b/src/liballoc/vec.rs
@@ -1751,7 +1751,7 @@ impl<'a, T> IntoIterator for &'a mut Vec<T> {
     type Item = &'a mut T;
     type IntoIter = slice::IterMut<'a, T>;
 
-    fn into_iter(mut self) -> slice::IterMut<'a, T> {
+    fn into_iter(self) -> slice::IterMut<'a, T> {
         self.iter_mut()
     }
 }
diff --git a/src/liballoc/vec_deque.rs b/src/liballoc/vec_deque.rs
index fdd6c79ef2e..2068c2c9c5f 100644
--- a/src/liballoc/vec_deque.rs
+++ b/src/liballoc/vec_deque.rs
@@ -2394,7 +2394,7 @@ impl<'a, T> IntoIterator for &'a mut VecDeque<T> {
     type Item = &'a mut T;
     type IntoIter = IterMut<'a, T>;
 
-    fn into_iter(mut self) -> IterMut<'a, T> {
+    fn into_iter(self) -> IterMut<'a, T> {
         self.iter_mut()
     }
 }
@@ -2558,7 +2558,7 @@ impl<'a, T> Place<T> for PlaceBack<'a, T> {
 impl<'a, T> InPlace<T> for PlaceBack<'a, T> {
     type Owner = &'a mut T;
 
-    unsafe fn finalize(mut self) -> &'a mut T {
+    unsafe fn finalize(self) -> &'a mut T {
         let head = self.vec_deque.head;
         self.vec_deque.head = self.vec_deque.wrap_add(head, 1);
         &mut *(self.vec_deque.ptr().offset(head as isize))
@@ -2605,7 +2605,7 @@ impl<'a, T> Place<T> for PlaceFront<'a, T> {
 impl<'a, T> InPlace<T> for PlaceFront<'a, T> {
     type Owner = &'a mut T;
 
-    unsafe fn finalize(mut self) -> &'a mut T {
+    unsafe fn finalize(self) -> &'a mut T {
         self.vec_deque.tail = self.vec_deque.wrap_sub(self.vec_deque.tail, 1);
         &mut *(self.vec_deque.ptr().offset(self.vec_deque.tail as isize))
     }