Build failed. https://zuul.opendev.org/t/openstack/buildset/188a58b5dec14926bc4c44e3b83976b7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f0e3fdeb7a214f6796c46a9a26dbf43c : SUCCESS in 3m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a9c2f7daabbc43e3a25fb4dcfceffc40 : SUCCESS in 3m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0dd53f61487a4fefb9a2c2d7bd1548bf : FAILURE in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/537b46ae857f4a9a96db5925c6705bb7 : FAILURE in 3m 47s