Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.serialization/stable/pike/build-openstack-sphinx-docs/a20b08f/ : RETRY_LIMIT in 2m 53s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.serialization/stable/pike/openstack-tox-py27/aa98a82/ : SUCCESS in 4m 09s