Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.cache/stable/pike/build-openstack-sphinx-docs/da812eb/ : RETRY_LIMIT in 2m 59s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.cache/stable/pike/openstack-tox-py27/eb67d58/ : SUCCESS in 4m 53s