Build failed. https://zuul.opendev.org/t/openstack/buildset/c5bc4da0a88b444da8587b7e79c3dcbb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a150768fa8b24c06998c55b184ccd6ce : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/84b9a7e29c724593ad2c5cb4d4c62241 : SUCCESS in 2m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2e28fcf3e99a41ae8267f20edef6d5f6 : FAILURE in 2m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/afeec2597c3442199cafced9237f2566 : FAILURE in 2m 55s