Build failed. https://zuul.opendev.org/t/openstack/buildset/1344758f2c8f479bb462d4dd4b50d7d3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/56bf762eab884034ab0e54d6fe355a31 : FAILURE in 3m 34s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c92d301d55e44d33a878a21460a51ad9 : SUCCESS in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c71e1abe621043e3810a8d0b8562ca8c : SUCCESS in 2m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b695d694351941e78f9881685416883f : SUCCESS in 3m 13s