Build failed. https://zuul.opendev.org/t/openstack/buildset/08c36966e9d84924a2dca9d0979b3203 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4339297b4c094fd290b063e8264d4f7d : RETRY_LIMIT in 2s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e1b04a1de14a4a48beb217c13767574e : RETRY_LIMIT in 4s