Build failed. https://zuul.opendev.org/t/openstack/buildset/2c35756d23d14721bc26e9b7f97939f6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c7acc2fd6d1541f9ae8b2661feb61243 : SUCCESS in 3m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6a5ee41b8d6c4ae5bdf0bbbe3c72e07a : SUCCESS in 3m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5a7ce5bd060643669f92143f37a68140 : FAILURE in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ceb33b5461e34676953757c18edf8f93 : FAILURE in 2m 59s