diff -r e4d45315c38c Lib/test/test_regrtest.py
--- a/Lib/test/test_regrtest.py	Wed Sep 04 19:02:49 2013 +0200
+++ b/Lib/test/test_regrtest.py	Thu Sep 05 18:49:18 2013 +0200
@@ -3,6 +3,7 @@
 """
 
 import argparse
+import faulthandler
 import getopt
 import os.path
 import unittest
@@ -25,6 +26,8 @@
                     regrtest._parse_args([opt])
                 self.assertIn('Run Python regression tests.', out.getvalue())
 
+    @unittest.skipUnless(hasattr(faulthandler, 'dump_traceback_later'),
+                         "faulthandler.dump_traceback_later() required")
     def test_timeout(self):
         ns = regrtest._parse_args(['--timeout', '4.2'])
         self.assertEqual(ns.timeout, 4.2)