Build failed. https://zuul.opendev.org/t/openstack/buildset/89196a19b9964075b466fad4912edab7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1bbabf88da034f45baab2f9e03f33845 : SUCCESS in 3m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cfc6cd6ab3e740d8b5a5b949492e00d9 : SUCCESS in 3m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0118ab65b56d4403bda8ec5e34d7b67a : FAILURE in 2m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1bcec0a6478e4c6daab9981b7fd07d52 : FAILURE in 2m 58s