Tested this in Fedora Rawhide virtual machine, where the fix for the problematic openssl commit was backported, and now the tests hang at test_poplib.

Exception in thread Thread-982:
Traceback (most recent call last):
  File "/home/harris/dev/cpython/_install/lib/python3.6/threading.py", line 916, in _bootstrap_inner
    self.run()
  File "/home/harris/dev/cpython/_install/lib/python3.6/test/test_poplib.py", line 222, in run
    asyncore.loop(timeout=0.1, count=1)
  File "/home/harris/dev/cpython/_install/lib/python3.6/asyncore.py", line 207, in loop
    poll_fun(timeout, map)
  File "/home/harris/dev/cpython/_install/lib/python3.6/asyncore.py", line 150, in poll
    read(obj)
  File "/home/harris/dev/cpython/_install/lib/python3.6/asyncore.py", line 87, in read
    obj.handle_error()
  File "/home/harris/dev/cpython/_install/lib/python3.6/asyncore.py", line 83, in read
    obj.handle_read_event()
  File "/home/harris/dev/cpython/_install/lib/python3.6/asyncore.py", line 423, in handle_read_event
    self.handle_read()
  File "/home/harris/dev/cpython/_install/lib/python3.6/test/test_poplib.py", line 192, in handle_read
    asynchat.async_chat.handle_read(self)
  File "/home/harris/dev/cpython/_install/lib/python3.6/asynchat.py", line 121, in handle_read
    self.handle_error()
  File "/home/harris/dev/cpython/_install/lib/python3.6/asynchat.py", line 117, in handle_read
    data = self.recv(self.ac_in_buffer_size)
  File "/home/harris/dev/cpython/_install/lib/python3.6/asyncore.py", line 374, in recv
    data = self.socket.recv(buffer_size)
  File "/home/harris/dev/cpython/_install/lib/python3.6/ssl.py", line 987, in recv
    return self.read(buflen)
  File "/home/harris/dev/cpython/_install/lib/python3.6/ssl.py", line 865, in read
    return self._sslobj.read(len, buffer)
  File "/home/harris/dev/cpython/_install/lib/python3.6/ssl.py", line 627, in read
    v = self._sslobj.read(len)
OSError: [Errno 0] Error