Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ffb68de41b25429f8cdd9486311a391a : SUCCESS in 6m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/11ff163884ee447f90ae80580dea56ba : SUCCESS in 7m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2c57266e674947b4a78034215222d64a : SUCCESS in 8m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/187a2926d1e84e5295898ff23aad6a64 : FAILURE in 9m 30s