AMD64 FreeBSD 10-STABLE Non-Debug 3.7:
https://buildbot.python.org/all/#/builders/170/builds/200

Note: this buildbot is *very* slow.


test_enable_UTF8_True_append (test.test_imaplib.NewIMAPTests) ...

SENT: b'* OK IMAP4rev1'
GOT: b'PJHE0 CAPABILITY'
SENT: b'* CAPABILITY IMAP4rev1 ENABLE UTF8=ACCEPT'
SENT: b'PJHE0 OK CAPABILITY completed'
ERROR

(...)
ERROR: test_enable_UTF8_True_append (test.test_imaplib.NewIMAPTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/test/test_imaplib.py", line 297, in test_enable_UTF8_True_append
    code, _ = client.authenticate('MYAUTH', lambda x: b'fake')
  File "/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", line 428, in authenticate
    typ, dat = self._simple_command('AUTHENTICATE', mech)
  File "/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", line 1196, in _simple_command
    return self._command_complete(name, self._command(name, *args))
  File "/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", line 989, in _command
    while self._get_response():
  File "/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", line 1047, in _get_response
    resp = self._get_line()
  File "/usr/home/buildbot/python/3.7.koobs-freebsd10.nondebug/build/Lib/imaplib.py", line 1151, in _get_line
    raise self.abort('socket error: EOF')
imaplib.IMAP4.abort: socket error: EOF


See also bpo-20118 ("test_imaplib test_linetoolong fails on 2.7 in SSL test on some buildbots").