diff -r d9be905ca991 -r 5f5d6db79f31 mercurial/revset.py
--- a/mercurial/revset.py	Fri Oct 10 13:08:49 2014 -0700
+++ b/mercurial/revset.py	Fri Oct 10 13:09:22 2014 -0700
@@ -2906,9 +2906,6 @@
         l = baseset([r for r in self])
         return l[x]
 
-    def set(self):
-        return self
-
     def isascending(self):
         return self._start <= self._end