2 files changed, 3 insertions, 3 deletions
diff --git a/src/libsyntax/util/interner.rs b/src/libsyntax/util/interner.rs
index 1b35b1b04a3..51144267519 100644
--- a/src/libsyntax/util/interner.rs
+++ b/src/libsyntax/util/interner.rs
@@ -40,7 +40,7 @@ impl<T: Eq + Hash<Hasher> + Clone + 'static> Interner<T> {
 
     pub fn prefill(init: &[T]) -> Interner<T> {
         let rv = Interner::new();
-        for v in init.iter() {
+        for v in init {
             rv.intern((*v).clone());
         }
         rv
@@ -158,7 +158,7 @@ impl StrInterner {
 
     pub fn prefill(init: &[&str]) -> StrInterner {
         let rv = StrInterner::new();
-        for &v in init.iter() { rv.intern(v); }
+        for &v in init { rv.intern(v); }
         rv
     }
 
diff --git a/src/libsyntax/util/small_vector.rs b/src/libsyntax/util/small_vector.rs
index 12f871b2782..a6c92c03743 100644
--- a/src/libsyntax/util/small_vector.rs
+++ b/src/libsyntax/util/small_vector.rs
@@ -38,7 +38,7 @@ impl<T> FromIterator<T> for SmallVector<T> {
 }
 
 impl<T> Extend<T> for SmallVector<T> {
-    fn extend<I: Iterator<Item=T>>(&mut self, mut iter: I) {
+    fn extend<I: Iterator<Item=T>>(&mut self, iter: I) {
         for val in iter {
             self.push(val);
         }