Build failed. https://zuul.opendev.org/t/openstack/buildset/b14e0c0e9285485296c0652947a4723a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/06a06864a21843fbacd6471696f2795f : SUCCESS in 3m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b3e952b9579f4bb4abcbcd0972e59625 : SUCCESS in 3m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a00533384d4e404a83ffff257c94e0c1 : SUCCESS in 2m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/43c7b4bbd8034103add7afd8ee163832 : FAILURE in 3m 37s