Build failed. https://zuul.opendev.org/t/openstack/buildset/b230bb45d7ce4b7f86f1dce43cc70143 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/41af472f67634c00a5e66ace7c323577 : SUCCESS in 2m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/447af572dac7415cac618a4d28ba7167 : SUCCESS in 2m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f0b04cabb7de4fd79d8205b6195692a2 : SUCCESS in 2m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/efd205bc04274a9b971236212c4d268f : FAILURE in 2m 29s