Build failed. https://zuul.opendev.org/t/openstack/buildset/a8edb6e8042d475dbb57ed98637ada05 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e31d9f272c6c4100b8f639eb23864910 : SUCCESS in 4m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/80f871d410ec47759d05d446735d00b3 : FAILURE in 2m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/92956aae01c745909b1ddfb5d46fdc18 : SUCCESS in 4m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e7726438da2741ce81ef17c392360081 : SUCCESS in 3m 19s