Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.serialization/stable/ocata/build-openstack-sphinx-docs/21c7130/ : RETRY_LIMIT in 4m 25s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.serialization/stable/ocata/openstack-tox-py27/38e0b86/ : SUCCESS in 3m 54s