Build failed. https://zuul.opendev.org/t/openstack/buildset/591c27e15cf240b58cc05e380d4f2c5f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9c35cd83b81445ee97be1159d9b0992d : SUCCESS in 2m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b7d6a6f49260470782068f0a0f72e924 : FAILURE in 2m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2ac08828e0b24f1eb40010253af8df81 : SUCCESS in 2m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a62c2ec2d92b4272bd4f9aa9902961b1 : FAILURE in 2m 49s