Build failed. https://zuul.opendev.org/t/openstack/buildset/82ea3aaf431b4c34a840f60d67809afc - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/54dab3b26cb9404bb2ec7fd510261103 : SUCCESS in 3m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9ed080a41ca34bcea80e3646cc98ac67 : FAILURE in 3m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4b1b26b638df4a319502ca5f0d114c85 : SUCCESS in 3m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a4d3d673e97f4d19a96733a39b03018a : SUCCESS in 3m 38s