Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.cache/stable/queens/build-openstack-sphinx-docs/6b7da74/ : RETRY_LIMIT in 6m 07s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.cache/stable/queens/openstack-tox-py27/08978e1/ : SUCCESS in 3m 48s