Build failed. https://zuul.opendev.org/t/openstack/buildset/98aa6d9aac23421daabbc3283c7e5e44 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5701050012a54214a67fedd9fba4b47f : FAILURE in 6m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/512f4d6ec927412193461356451be72d : SUCCESS in 6m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9578e5bb46c34fcca0955a265db20d94 : SUCCESS in 5m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a4d0f47b685041acaecfaa4c647d6d64 : SUCCESS in 5m 26s