Build failed. https://zuul.opendev.org/t/openstack/buildset/4e1b73ac7e2840edaff59c604b2c8176 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4e4d1be9c3de4daeb64d0acf05b7dd91 : SUCCESS in 2m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ffa294f38fe84e93914e9f66681d5ca5 : SUCCESS in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3ca250162697493ba5986fcd4faa3fcf : SUCCESS in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/630a0873f1db4b2084034210dc226361 : FAILURE in 2m 46s