Build failed. https://zuul.opendev.org/t/openstack/buildset/5d885f6c57314cda9f4d5df1df38dc2d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/24a3b2ab421a4e66aae3e8faf82c53d6 : SUCCESS in 5m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bdf818554de14748b9d2d7e75ec80b3d : SUCCESS in 9m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8b2c06641bf142258f006d536bfa86d1 : SUCCESS in 4m 30s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/07dacc93b35248a295e596d8bf148872 : FAILURE in 3m 22s