Build failed. https://zuul.opendev.org/t/openstack/buildset/55120e709d6b4602bc200259e08c76cb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f10de76e34a340e496ab3965ca4c46e8 : SUCCESS in 3m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/78a460627ae5440b9a0b6bce3cb96d1d : FAILURE in 2m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ca9a2dae1578470e957b42c03fc2940c : SUCCESS in 2m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/53163de914d74b90836f02f8622365fd : FAILURE in 2m 50s