test_asyncio started to fail at build 163:

http://buildbot.python.org/all/#/builders/20/builds/163
(...)
test_legacy_create_ssl_connection (test.test_asyncio.test_events.KqueueEventLoopTests) ... ok
test_legacy_create_ssl_unix_connection (test.test_asyncio.test_events.KqueueEventLoopTests) ... ok
test_legacy_create_unix_server_ssl (test.test_asyncio.test_events.KqueueEventLoopTests) ... ok
test_legacy_create_unix_server_ssl_verified (test.test_asyncio.test_events.KqueueEventLoopTests) ... ok
test_legacy_create_unix_server_ssl_verify_failed (test.test_asyncio.test_events.KqueueEventLoopTests) ... ok
test_prompt_cancellation (test.test_asyncio.test_events.KqueueEventLoopTests) ... ok
test_read_pipe (test.test_asyncio.test_events.KqueueEventLoopTests) ... ok
Timeout (0:15:00)!
Thread 0x00007fffb5eee340 (most recent call first):
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/selectors.py", line 577 in select
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/asyncio/base_events.py", line 1396 in _run_once
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/asyncio/base_events.py", line 422 in run_forever
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/asyncio/base_events.py", line 455 in run_until_complete
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/test_asyncio/test_events.py", line 1536 in test_read_pty_output
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/support/__init__.py", line 555 in wrapper
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/support/__init__.py", line 600 in wrapper
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/test_asyncio/test_events.py", line 2232 in test_read_pty_output
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/support/__init__.py", line 600 in wrapper
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/case.py", line 605 in run
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/case.py", line 653 in __call__
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 122 in run
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 84 in __call__
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 122 in run
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 84 in __call__
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 122 in run
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 84 in __call__
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 122 in run
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 84 in __call__
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 122 in run
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/suite.py", line 84 in __call__
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/unittest/runner.py", line 176 in run
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/support/__init__.py", line 1887 in _run_suite
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/support/__init__.py", line 1977 in run_unittest
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/libregrtest/runtest.py", line 172 in test_runner
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/libregrtest/runtest.py", line 173 in runtest_inner
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/libregrtest/runtest.py", line 137 in runtest
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/libregrtest/main.py", line 290 in rerun_failed_tests
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/libregrtest/main.py", line 539 in _main
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/libregrtest/main.py", line 509 in main
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/libregrtest/main.py", line 584 in main
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/test/__main__.py", line 2 in <module>
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/runpy.py", line 85 in _run_code
  File "/Users/buildbot/buildarea/3.6.billenstein-sierra/build/Lib/runpy.py", line 193 in _run_module_as_main
make: *** [buildbottest] Error 1
program finished with exit code 2
elapsedTime=2527.463349
test_read_pty_output (test.test_asyncio.test_events.KqueueEventLoopTests) ...