Build failed. https://zuul.opendev.org/t/openstack/buildset/81b38d51f3094b55bce4b8a43f1ea537 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/116eae43ef01468093820e6742b06784 : SUCCESS in 10m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9f539fecf6a5470f8b08419cf834d5dc : RETRY_LIMIT in 2m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0fa66cbd2a0d481a9d9106473ad8784a : SUCCESS in 4m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5add54885bdd4165a679b896389973fd : SUCCESS in 4m 57s