Build failed. https://zuul.opendev.org/t/openstack/buildset/adeb4c88f45040aebe3c7ff50ea77be9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e6ec5d4487fc4451b0b823d38b5f3f2f : SUCCESS in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d105e5b64a78445a83800bdb77e27c93 : SUCCESS in 3m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c5a92bef2b73420bbe3f8c97f4f339f1 : SUCCESS in 2m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/38e01a1a61474e9c98d6d6b2bcaca6b0 : FAILURE in 2m 51s