Build failed. https://zuul.opendev.org/t/openstack/buildset/68bbe5566cb74fd08ad38b0d33f72ffa - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c29c10998ba4499694986b0a2bbe5e89 : SUCCESS in 4m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a41083ef113c44ad8f634a1ea4e5fb80 : SUCCESS in 4m 27s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6d00ccca1bcd4220a0823c40cd84b2de : SUCCESS in 4m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7a96a7c0f1eb42709f87e668b70f19dc : FAILURE in 4m 24s