Build failed. https://zuul.opendev.org/t/openstack/buildset/c2d9c7bc7d0a467eb3b9371228d008b8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/38f4a8f1e1a8482781f34ec47d0608ce : SUCCESS in 3m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/843d876ec0e74fe68dfacf675168d3ab : SUCCESS in 2m 45s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/64e86be9a51a4bf085f70ee2eaf4adc5 : SUCCESS in 2m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c572b3c6ccd1427da141c9ce2923070f : FAILURE in 2m 55s