Build failed. https://zuul.opendev.org/t/openstack/buildset/cf7bdd6d4e6949298089c32c37201e91 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/32e9f7d472ea42029b81629988e599bf : FAILURE in 3m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e1fdba0c60cb4d61a8b11c7a10829ade : FAILURE in 4m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/239ab335aa6046fab953302e06215037 : FAILURE in 3m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8b4d7e2621e3466cb41ec8594e38ea0c : FAILURE in 5m 32s