Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.messaging/stable/pike/build-openstack-sphinx-docs/01950bb/ : RETRY_LIMIT in 30m 41s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/oslo.messaging/stable/pike/openstack-tox-py27/c849ed4/ : SUCCESS in 3m 49s