Build failed. https://zuul.opendev.org/t/openstack/buildset/736f1cf6fdd84e6ebef17a3836c45cf2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/784cdb95843948518e45a30f3c2bf4b8 : SUCCESS in 4m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a39e2835331a48f98e36e825f7566dfd : FAILURE in 3m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d2fe8c245c874dc987dba2b500ec5a4a : SUCCESS in 4m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bfd5b47dbb0640eb8430dfacd6eb9713 : FAILURE in 2m 52s