Build failed. https://zuul.opendev.org/t/openstack/buildset/b47459681e2c47feb354a7d8815d7c9a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1df3563a73b04aa6b5cd9443f7992dc6 : FAILURE in 5m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/26846c3b39254b13b275d329fab07454 : RETRY_LIMIT in 2m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3a87d9c322e14a08a60fe6e2664fffd4 : SUCCESS in 5m 51s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e36ef952b62c4ee384a7d6702dc770e2 : SUCCESS in 7m 42s