stack@ubuntu:/opt/stack/nova$ time tox -epy27
py27 develop-inst-nodeps: /opt/stack/nova
py27 runtests: commands[0] | python setup.py test --slowest --testr-args=
running test
running=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-60} \
${PYTHON:-python} -m subunit.run discover -t ./ ./nova/tests --list
running=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-60} \
${PYTHON:-python} -m subunit.run discover -t ./ ./nova/tests  --load-list /tmp/tmprUKy0S
running=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-60} \
${PYTHON:-python} -m subunit.run discover -t ./ ./nova/tests  --load-list /tmp/tmpMH3AXM
Unimplemented block at ../../relaxng.c:3824
Unimplemented block at ../../relaxng.c:3824
======================================================================
FAIL: nova.tests.virt.xenapi.test_xenapi.XenAPIVMTestCase.test_instance_snapshot_fails_with_no_primary_vdi
tags: worker-1
----------------------------------------------------------------------
Empty attachments:
  stderr
  stdout

pythonlogging:'': {{{
Loading network driver 'nova.network.linux_net'
Loading network driver 'nova.network.linux_net'
Loading network driver 'nova.network.linux_net'
glance.upload_vhd attempt 1/1
}}}

Traceback (most recent call last):
  File "nova/tests/virt/xenapi/test_xenapi.py", line 524, in test_instance_snapshot_fails_with_no_primary_vdi
    lambda *args, **kwargs: None)
  File "/usr/local/lib/python2.7/dist-packages/testtools/testcase.py", line 394, in assertRaises
    self.assertThat(our_callable, matcher)
  File "/usr/local/lib/python2.7/dist-packages/testtools/testcase.py", line 417, in assertThat
    raise MismatchError(matchee, matcher, mismatch, verbose)
MismatchError: <bound method XenAPIDriver.snapshot of <nova.virt.xenapi.driver.XenAPIDriver object at 0xe94d0d0>> returned None
======================================================================
FAIL: process-returncode
tags: worker-1
----------------------------------------------------------------------
Binary content:
  traceback (test/plain; charset="utf8")
Ran 19163 (+9581) tests in 920.172s (-455.682s)
FAILED (id=32, failures=2 (-1), skips=10)
error: testr failed (1)
ERROR: InvocationError: '/opt/stack/nova/.tox/py27/bin/python setup.py test --slowest --testr-args='
___________________________________ summary ___________________________________
ERROR:   py27: commands failed