Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/taskflow/stable/queens/build-openstack-sphinx-docs/7ea100a/ : RETRY_LIMIT in 4m 35s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/taskflow/stable/queens/openstack-tox-py27/8c71a35/ : SUCCESS in 7m 16s