Build failed. https://zuul.opendev.org/t/openstack/buildset/cb1b21c6876a4f7dbc6e97abaf86d2cb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1d04acc21e054f7e864b27e5b181152c : SUCCESS in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/11ded5e469dc40739cc084c4e1ad0a86 : SUCCESS in 3m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4011e48aae00488cb9d2b69922a33488 : FAILURE in 2m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a8820c4104384707820623f1ac9db68c : FAILURE in 2m 36s