Fix debug infinite loop

1 files changed, 10 insertions, 4 deletions

diff --git a/src/libcollections/vec_deque.rs b/src/libcollections/vec_deque.rs
index 2ce3b92843b..f0e61ebc47b 100644
--- a/src/libcollections/vec_deque.rs
+++ b/src/libcollections/vec_deque.rs
@@ -1913,7 +1913,9 @@ pub struct Iter<'a, T: 'a> {
 impl<'a, T: 'a + fmt::Debug> fmt::Debug for Iter<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_tuple("Iter")
-         .field(&self.clone())
+         .field(&self.ring)
+         .field(&self.tail)
+         .field(&self.head)
          .finish()
     }
 }
@@ -2000,7 +2002,9 @@ pub struct IterMut<'a, T: 'a> {
 impl<'a, T: 'a + fmt::Debug> fmt::Debug for IterMut<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_tuple("IterMut")
-         .field(&self.clone())
+         .field(&self.ring)
+         .field(&self.tail)
+         .field(&self.head)
          .finish()
     }
 }
@@ -2081,7 +2085,7 @@ pub struct IntoIter<T> {
 impl<T: fmt::Debug> fmt::Debug for IntoIter<T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_tuple("IntoIter")
-         .field(&self.clone())
+         .field(&self.inner)
          .finish()
     }
 }
@@ -2139,7 +2143,9 @@ pub struct Drain<'a, T: 'a> {
 impl<'a, T: 'a + fmt::Debug> fmt::Debug for Drain<'a, T> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.debug_tuple("Drain")
-         .field(&self.clone())
+         .field(&self.after_tail)
+         .field(&self.after_head)
+         .field(&self.iter)
          .finish()
     }
 }