Build failed. https://zuul.opendev.org/t/openstack/buildset/01dfbba0465f4fef80b5835fade1f36a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7d85bcde25284b2c91699e491b4a68c0 : SUCCESS in 4m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/551981051de046d2b5d40efa659fd76e : SUCCESS in 3m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5da2488e64b9437c849b5144b96ed453 : FAILURE in 3m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2a78a07ce4024e0cb54e242425fca482 : FAILURE in 2m 50s