functional job fails with 1 failure and not explanation

[Miguel Angel Ajo]

http://logs.openstack.org/35/115935/7/check/check-neutron-dsvm-functional/7dd676a/console.html#_2014-09-01_22_27_23_651

I have seen those randomly appearing.

14-09-01 22:27:08.361 | 2014-09-01 22:27:08.304 | dsvm-functional runtests: commands[0] | python -m neutron.openstack.common.lockutils python setup.py testr --slowest --testr-args=
2014-09-01 22:27:08.902 | 2014-09-01 22:27:08.882 | running testr
2014-09-01 22:27:23.600 | 2014-09-01 22:27:23.581 | running=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./neutron/tests/unit} --list
2014-09-01 22:27:23.602 | 2014-09-01 22:27:23.582 | running=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./neutron/tests/unit} --load-list /tmp/tmpClMUnK
2014-09-01 22:27:23.639 | 2014-09-01 22:27:23.584 | running=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./neutron/tests/unit} --load-list /tmp/tmp3KcTHu
2014-09-01 22:27:23.641 | 2014-09-01 22:27:23.586 | running=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./neutron/tests/unit} --load-list /tmp/tmpvgHvYc
2014-09-01 22:27:23.642 | 2014-09-01 22:27:23.588 | running=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./neutron/tests/unit} --load-list /tmp/tmpT86q67
2014-09-01 22:27:23.642 | 2014-09-01 22:27:23.589 | running=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./neutron/tests/unit} --load-list /tmp/tmpB8tN3N
2014-09-01 22:27:23.643 | 2014-09-01 22:27:23.591 | running=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./neutron/tests/unit} --load-list /tmp/tmpxbZvcn
2014-09-01 22:27:23.644 | 2014-09-01 22:27:23.593 | running=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./neutron/tests/unit} --load-list /tmp/tmpLIEivx
2014-09-01 22:27:23.645 | 2014-09-01 22:27:23.594 | running=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./neutron/tests/unit} --load-list /tmp/tmp_5TnKS
2014-09-01 22:27:23.646 | 2014-09-01 22:27:23.596 | ======================================================================
2014-09-01 22:27:23.647 | 2014-09-01 22:27:23.597 | FAIL: process-returncode
2014-09-01 22:27:23.647 | 2014-09-01 22:27:23.599 | tags: worker-0
2014-09-01 22:27:23.648 | 2014-09-01 22:27:23.601 | ----------------------------------------------------------------------
2014-09-01 22:27:23.649 | 2014-09-01 22:27:23.603 | returncode 1
2014-09-01 22:27:23.650 | 2014-09-01 22:27:23.604 | Ran 17 tests in 13.259s
2014-09-01 22:27:23.651 | 2014-09-01 22:27:23.606 | FAILED (id=0, failures=1)
2014-09-01 22:27:23.651 | 2014-09-01 22:27:23.607 | error: testr failed (1)
2014-09-01 22:27:23.652 | 2014-09-01 22:27:23.619 | ERROR: InvocationError: '/opt/stack/new/neutron/.tox/dsvm-functional/bin/python -m neutron.openstack.common.lockutils python setup.py testr --slowest --testr-args='
2014-09-01 22:27:23.653 | 2014-09-01 22:27:23.621 | ___________________________________ summary ____________________________________
2014-09-01 22:27:23.654 | 2014-09-01 22:27:23.622 | ERROR: dsvm-functional: commands failed
2014-09-01 22:27:23.678 | + RETVAL=1
2014-09-01 22:27:23.678 | + sudo mv /home/jenkins/workspace/check-neutron-dsvm-functional/devstack-gate-post-test-hook.txt /opt/stack/logs/
2014-09-01 22:27:23.679 | + set +o pipefail
2014-09-01 22:27:23.680 | + set +o xtrace