remove Copy impls from iterators

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libunicode/u_str.rs b/src/libunicode/u_str.rs
index 370f59a5b26..9a757c0c980 100644
--- a/src/libunicode/u_str.rs
+++ b/src/libunicode/u_str.rs
@@ -447,7 +447,7 @@ impl<'a> Iterator for Utf16Items<'a> {
             Some(Utf16Item::LoneSurrogate(u))
         } else {
             // preserve state for rewinding.
-            let old = self.iter;
+            let old = self.iter.clone();
 
             let u2 = match self.iter.next() {
                 Some(u2) => *u2,
@@ -457,7 +457,7 @@ impl<'a> Iterator for Utf16Items<'a> {
             if u2 < 0xDC00 || u2 > 0xDFFF {
                 // not a trailing surrogate so we're not a valid
                 // surrogate pair, so rewind to redecode u2 next time.
-                self.iter = old;
+                self.iter = old.clone();
                 return Some(Utf16Item::LoneSurrogate(u))
             }