Build failed. https://zuul.opendev.org/t/openstack/buildset/c94addd0ea3a4eb485763967b2663c94 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a01d81858828485d9869bc4c283755b0 : SUCCESS in 3m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7816033382bd4678a1452aa9b4d749ca : FAILURE in 3m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/40a823c32057452a9bacd7f7b5ef4ec2 : SUCCESS in 3m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e886b667c1cd43f1856f876c526006c0 : SUCCESS in 3m 41s