https://ci.appveyor.com/project/python/cpython/builds/24376676

ERROR: test_drain_raises (test.test_asyncio.test_streams.StreamTests)
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Traceback (most recent call last):
  File "C:\projects\cpython\lib\test\test_asyncio\test_streams.py", line 820, in test_drain_raises
    self.loop.run_until_complete(client(*addr))
  File "C:\projects\cpython\lib\asyncio\base_events.py", line 584, in run_until_complete
    return future.result()
  File "C:\projects\cpython\lib\test\test_asyncio\test_streams.py", line 810, in client
    await writer.drain()
  File "C:\projects\cpython\lib\asyncio\streams.py", line 351, in drain
    await fut
  File "C:\projects\cpython\lib\asyncio\selector_events.py", line 860, in write
    n = self._sock.send(data)
ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine