diff -r 37c0d93fb166 -r af03279c766a mercurial/scmutil.py
--- a/mercurial/scmutil.py	Tue Oct 15 00:51:04 2013 +0900
+++ b/mercurial/scmutil.py	Tue Oct 15 00:51:04 2013 +0900
@@ -274,6 +274,9 @@
     def unlink(self, path=None):
         return util.unlink(self.join(path))
 
+    def utime(self, path=None, t=None):
+        return os.utime(self.join(path), t)
+
 class vfs(abstractvfs):
     '''Operate files relative to a base directory