I just hit this running selftest parallel=fork:


ERROR: bzrlib.tests.test_transport.TestSSHConnections.test_bzr_connect_to_bzr_ssh
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_StringException: Text attachment: log
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359.965  failed to load system host keys: [Errno 2] No such file or directory: '/tmp/testbzr-sIvONc.tmp/bzrlib.tests.test_transport.TestSSHConnections.test_bzr_connect_to_bzr_ssh/home/.ssh/known_hosts'
359.965  failed to load bzr host keys: [Errno 2] No such file or directory: '/tmp/testbzr-sIvONc.tmp/bzrlib.tests.test_transport.TestSSHConnections.test_bzr_connect_to_bzr_ssh/home/.bazaar/ssh_host_keys'
359.965  creating config directory: '/tmp/testbzr-sIvONc.tmp/bzrlib.tests.test_transport.TestSSHConnections.test_bzr_connect_to_bzr_ssh/home/.bazaar'
359.970  opening working tree '/tmp/testbzr-sIvONc.tmp'
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Text attachment: traceback
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Traceback (most recent call last):
  File "/home/mbp/lib/python/testtools/runtest.py", line 144, in _run_user
    return fn(*args)
  File "/home/mbp/lib/python/testtools/testcase.py", line 442, in _run_test_method
    testMethod()
  File "/home/mbp/bzr/work/bzrlib/tests/test_transport.py", line 981, in test_bzr_connect_to_bzr_ssh
    t.mkdir('foo')
  File "/home/mbp/bzr/work/bzrlib/transport/remote.py", line 242, in mkdir
    self._serialise_optional_mode(mode))
  File "/home/mbp/bzr/work/bzrlib/transport/remote.py", line 182, in _call2
    return self._client.call(method, *args)
  File "/home/mbp/bzr/work/bzrlib/smart/client.py", line 132, in call
    result, protocol = self.call_expecting_body(method, *args)
  File "/home/mbp/bzr/work/bzrlib/smart/client.py", line 145, in call_expecting_body
    method, args, expect_response_body=True)
  File "/home/mbp/bzr/work/bzrlib/smart/client.py", line 90, in _call_and_read_response
    readv_body=readv_body, body_stream=body_stream)
  File "/home/mbp/bzr/work/bzrlib/smart/client.py", line 63, in _send_request
    encoder.call(method, *args)
  File "/home/mbp/bzr/work/bzrlib/smart/protocol.py", line 1309, in call
    self._write_end()
  File "/home/mbp/bzr/work/bzrlib/smart/protocol.py", line 1133, in _write_end
    self.flush()
  File "/home/mbp/bzr/work/bzrlib/smart/protocol.py", line 1099, in flush
    self._real_write_func(''.join(self._buf))
  File "/home/mbp/bzr/work/bzrlib/smart/medium.py", line 396, in accept_bytes
    self._accept_bytes(bytes)
  File "/home/mbp/bzr/work/bzrlib/smart/medium.py", line 978, in _accept_bytes
    self._medium._accept_bytes(bytes)
  File "/home/mbp/bzr/work/bzrlib/smart/medium.py", line 794, in _accept_bytes
    self._ensure_connection()
  File "/home/mbp/bzr/work/bzrlib/smart/medium.py", line 818, in _ensure_connection
    '--directory=/', '--allow-writes'])
  File "/home/mbp/bzr/work/bzrlib/transport/ssh.py", line 332, in connect_ssh
    t = self._connect(username, password, host, port)
  File "/home/mbp/bzr/work/bzrlib/transport/ssh.py", line 287, in _connect
    self._raise_connection_error(host, port=port, orig_error=e)
  File "/home/mbp/bzr/work/bzrlib/transport/ssh.py", line 257, in _raise_connection_error
    orig_error=orig_error)
SocketConnectionError: Unable to connect to SSH host localhost:44795; [Errno 111] Connection refused