Build failed. https://zuul.opendev.org/t/openstack/buildset/edbc06f34de649d6ba3bd160d99c3e61 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ef287dd7141547068ab55990a05eaf7d : SUCCESS in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/17fd7f3844bc4798a49f61f2bc77f1f5 : SUCCESS in 3m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2188b0915da94be6bee433957aec9dbe : FAILURE in 4m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b101f01b0b1a4d3280841c09ee446ac2 : FAILURE in 3m 10s