Build failed. https://zuul.opendev.org/t/openstack/buildset/6d803e0e3f2e41a2b9109fd4f79b796f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/84a65f8d65bf483ba69bd9e4ba39dfd3 : SUCCESS in 4m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2eab1dfb39e64fd8a4c11fe442e936bc : FAILURE in 6m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8914be530ebc4b3fa3d54c5789a0d1d9 : SUCCESS in 5m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/753dda5108754628b915c372372f2e71 : FAILURE in 5m 34s