Build failed. https://zuul.opendev.org/t/openstack/buildset/b3f5b74b845d4b3da9f18614bd4bdc29 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a1a286d885fd4358850c376f788dc998 : SUCCESS in 4m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c15be201f75b457b9cbaeecafc347bdc : SUCCESS in 4m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/55f037c5da7749efac112fcf499ff849 : SUCCESS in 4m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bc58fe18d7614271a0e42810dfc089eb : FAILURE in 4m 03s