Build failed. https://zuul.opendev.org/t/openstack/buildset/70df5df7af3f4b3e9c638b0dd05aa301 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ca9bb601edc24dbc8e65323366a4c13b : SUCCESS in 4m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/67e80b00a2564cf1ba851ada69beeef6 : SUCCESS in 4m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/551edbc415ad422199ec109222db1ad3 : FAILURE in 4m 32s