Build failed. https://zuul.opendev.org/t/openstack/buildset/ca788a50538843cfa7463ee8e73e57e3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/433ddbc126ed47b2b9ca8a69cfd9558b : SUCCESS in 3m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b69cafc5a5264a598a2acbdfb06ff0ed : SUCCESS in 3m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b7eb73f08ea245b687940ddee517f1dc : FAILURE in 2m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1496e18f82b94bf2a8f37a2bf0f14a4f : FAILURE in 2m 48s