Build failed. https://zuul.opendev.org/t/openstack/buildset/1322b0fbaf5846ce937e6243146cee21 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d1e60a6083034085a4a4d5a87e73d60d : SUCCESS in 4m 30s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5e3339f8d926427688eb4f26307778a0 : SUCCESS in 3m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8f1aa0dc3efc4f8f855f5319e5d512a8 : SUCCESS in 4m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/00c9164c23b2431d9df635216b965da1 : FAILURE in 3m 19s