Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cdaf4a2c60d2454388fbe07d7319bf1d : SUCCESS in 7m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/dcaba0f0546d4053b3ca696cbe9d01d3 : SUCCESS in 7m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/84a72fae067342f690d648c88d482c36 : SUCCESS in 5m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5369fd6f4e76450eb2ad8adf8822fcd5 : FAILURE in 6m 52s