diff -r 5c9ec1cc671a -r 1956026e4db2 mercurial/commands.py
--- a/mercurial/commands.py	Wed Oct 07 23:04:31 2015 +0900
+++ b/mercurial/commands.py	Sun Oct 04 21:48:19 2015 -0700
@@ -6475,7 +6475,7 @@
                 finally:
                     if tr:
                         tr.release()
-                changes = [r.get('result', 0)
+                changes = [r.get('return', 0)
                            for r in op.records['changegroup']]
                 modheads = changegroup.combineresults(changes)
             else: