0:31:14 [305/405] test_startfile -- test_ssl failed
Exception in thread Thread-767:
Traceback (most recent call last):
  File "/build/python/src/Python-3.6.1/Lib/threading.py", line 916, in _bootstrap_inner
    self.run()
  File "/build/python/src/Python-3.6.1/Lib/test/test_ssl.py", line 1926, in run
    if not self.wrap_conn():
  File "/build/python/src/Python-3.6.1/Lib/test/test_ssl.py", line 1871, in wrap_conn
    self.sock, server_side=True)
  File "/build/python/src/Python-3.6.1/Lib/ssl.py", line 401, in wrap_socket
    _context=self, _session=session)
  File "/build/python/src/Python-3.6.1/Lib/ssl.py", line 808, in __init__
    self.do_handshake()
  File "/build/python/src/Python-3.6.1/Lib/ssl.py", line 1061, in do_handshake
    self._sslobj.do_handshake()
  File "/build/python/src/Python-3.6.1/Lib/ssl.py", line 683, in do_handshake
    self._sslobj.do_handshake()
OSError: [Errno 0] Error