Build failed. https://zuul.opendev.org/t/openstack/buildset/423db34747204ba8b2aa86053f10a226 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9b47bfcdd3e348dcac80bbd6a29e74fe : FAILURE in 5m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8d2e9348c32e479481923c354593f8a6 : SUCCESS in 6m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e441e23e6bf5490daa34d98e5c3001ef : SUCCESS in 6m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6d62b7a72b9d43bdb77186e56ffceb7e : SUCCESS in 7m 12s