Build failed. https://zuul.opendev.org/t/openstack/buildset/c33e2585acc642038dfad884fe408466 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6c39a1edae8d49778e70511b381c9b7e : SUCCESS in 3m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fdd7f294e25f47188a7d9a0b34c30042 : SUCCESS in 4m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1c7be001b2824a388c2e3c30325629c2 : SUCCESS in 4m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c61b13882b1f4c919f05c3dd1e889ef7 : FAILURE in 4m 17s