Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.concurrency/stable/queens/build-openstack-sphinx-docs/3d52dee/html/ : SUCCESS in 6m 10s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.concurrency/stable/queens/openstack-tox-py27/08a0751/ : FAILURE in 6m 58s