Build failed. https://zuul.opendev.org/t/openstack/buildset/8d5e3862a0a34bdb97ea0188cadbcd2d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4bed7166734b4725aa56ccdb8a7b917b : SUCCESS in 2m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c28ee3af3af440e1a004b06fabd32740 : SUCCESS in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e0436e4f6123484ebf576eda292998e4 : SUCCESS in 2m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/46d87ad25a6c4efc91ff1f028f9bc915 : FAILURE in 2m 37s