Build failed. https://zuul.opendev.org/t/openstack/buildset/a3028f410050494bad6118b03be45460 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a220c5d0d7e54297a3189a9d7af5af10 : SUCCESS in 3m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/23b28bf0cd1e4a6998a621fd3af2f176 : FAILURE in 2m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4d38b5ee74cf4a07981654f9b639a6c9 : SUCCESS in 3m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/27e7fbd0b9df424c9f8408b4508caea0 : FAILURE in 3m 38s