Build failed. https://zuul.opendev.org/t/openstack/buildset/a0f100cbd24a416b9bd67938d3e6b9a6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8c45d7fcf68b492aaeb4efa323cb79b0 : SUCCESS in 2m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2ff1c39759354399aff62977920e714b : SUCCESS in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/020c38e651b54f338def8f0b97a0b9e5 : SUCCESS in 3m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9270d1d19a2b4ca9ad7b6972d2dc8507 : FAILURE in 2m 31s