Build failed. https://zuul.opendev.org/t/openstack/buildset/bb4338832c194f77add7f47e484f6413 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9bd942f7275a45edb541ffa7a10b99ef : SUCCESS in 4m 41s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c4c55ccadce14336b976cdd16093bd39 : FAILURE in 3m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3876f386ebbd4ff08d1f22b9c0a9731c : SUCCESS in 3m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/eff9ec1bfe6147ed95cb932fbab68915 : SUCCESS in 4m 25s