Build failed. https://zuul.opendev.org/t/openstack/buildset/fd9c6edae005452aa820ef1be3ef28eb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/acbf7352536b4f508513d74f5ede72d6 : SUCCESS in 4m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/508df443b77c4c4fbfe29e3b58976d77 : FAILURE in 7m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5a01dd3415324baa891a07c035fd6d1f : SUCCESS in 3m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d424c9a21e6c478385d742be406fc11b : SUCCESS in 3m 44s