[python-committers] AppVeyor failure on test_asyncgen?

Hello,

One of my PR builds got an AppVeyor failure in test_asyncgen and I really doubt it is due to the PR itself: https://ci.appveyor.com/project/python/cpython/build/3.7.0a0.5366#L682

====================================================================== FAIL: test_async_gen_asyncio_gc_aclose_09 (test.test_asyncgen.AsyncGenAsyncioTest)

Traceback (most recent call last): File "C:\projects\cpython\lib\test\test_asyncgen.py", line 627, in test_async_gen_asyncio_gc_aclose_09 self.assertEqual(DONE, 1) AssertionError: 0 != 1

Regards

Antoine.