Build failed. https://zuul.opendev.org/t/openstack/buildset/4be7428f87cb43809b40edbec4119890 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9ebaa9c9eaa046498c989242d02ee9a4 : SUCCESS in 3m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7083f22d24ff49329ded27ddd201c668 : FAILURE in 2m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8ab969b247b34a7aa199f4a9746282a3 : SUCCESS in 3m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bef5229eb1be476c878ed4b19bcd50df : SUCCESS in 4m 08s