Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.cache/stable/queens/build-openstack-sphinx-docs/3a2dbf9/ : RETRY_LIMIT in 4m 32s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.cache/stable/queens/openstack-tox-py27/b7d91a2/ : SUCCESS in 4m 29s