Build failed. https://zuul.opendev.org/t/openstack/buildset/9b8a7bc169804eed9b1e532a2d7418d1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c0938d547ea34dddaf91db71d7b4ecc4 : FAILURE in 4m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/37fe00bf52e241c5a23af24cf5ad9f25 : FAILURE in 4m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7145d50b444c4431a303e8127afd3a42 : FAILURE in 4m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/db402ca5994247709c99bfc6cbe3066e : FAILURE in 4m 26s