Build failed. https://zuul.opendev.org/t/openstack/buildset/a2729395b13f42908066ab7e5972f488 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8b3b0fadb4fe48099bf724c919c0d3ca : SUCCESS in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/733f7a5a0bc04da3b43a017d2d3f15eb : SUCCESS in 2m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/20854ea1e3d24182b27aa5a7d66162d9 : SUCCESS in 2m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e73043f4dbf4422abdeb9ce1e35c5910 : FAILURE in 2m 25s