Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/06118189d277461299774755bc04d408 : SUCCESS in 5m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a1f1e76ec0204e3cabc00ee758ed0bc1 : SUCCESS in 4m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9d31c79377df479cbdb7b101cbfdee12 : SUCCESS in 4m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/dc6f61f1a73a43e6bbf58d5282f049fd : FAILURE in 5m 04s