Build failed. https://zuul.opendev.org/t/openstack/buildset/94f177fefb2a45c9a23523ec99594e5d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/00ab72650c0e44958c5b0d9647d851c3 : SUCCESS in 3m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/771ff33c111e434dbc2f619580d7a70a : FAILURE in 3m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/09efc9a5a62e45ca80bbf00075f2aa20 : SUCCESS in 3m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ec28d9a7c5a24509b67e49f5fcca6c92 : SUCCESS in 3m 42s