Yet another similar bug on "x86 Windows7 3.x":

http://buildbot.python.org/all/#/builders/58/builds/134

======================================================================
FAIL: test_ipython_workaround (test.test_multiprocessing_main_handling.SpawnCmdLineTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\test_multiprocessing_main_handling.py", line 179, in test_ipython_workaround
    self._check_script(script_name)
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\test_multiprocessing_main_handling.py", line 156, in _check_script
    rc, out, err = assert_python_ok(*run_args, __isolated=False)
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\support\script_helper.py", line 151, in assert_python_ok
    return _assert_python(True, *args, **env_vars)
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\support\script_helper.py", line 137, in _assert_python
    res.fail(cmd_line)
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\support\script_helper.py", line 79, in fail
    err))
AssertionError: Process return code is 1
command line: ['D:\\cygwin\\home\\db3l\\buildarea\\3.x.bolen-windows7\\build\\PCbuild\\win32\\python_d.exe', '-X', 'faulthandler', '-E', 'd:\\temp\\tmponku8v2m\\ipython.py', 'spawn']

stdout:
---

---

stderr:
---
Traceback (most recent call last):

  File "d:\temp\tmponku8v2m\ipython.py", line 23, in <module>

    raise RuntimeError("Timed out waiting for results")

RuntimeError: Timed out waiting for results
---