1 files changed, 3 insertions, 0 deletions
diff --git a/src/liballoc/boxed.rs b/src/liballoc/boxed.rs
index 28f4dda1408..d10d7a5e58d 100644
--- a/src/liballoc/boxed.rs
+++ b/src/liballoc/boxed.rs
@@ -524,6 +524,9 @@ impl<I: Iterator + ?Sized> Iterator for Box<I> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         (**self).size_hint()
     }
+    fn nth(&mut self, n: usize) -> Option<I::Item> {
+        (**self).nth(n)
+    }
 }
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<I: DoubleEndedIterator + ?Sized> DoubleEndedIterator for Box<I> {