Build failed. https://zuul.opendev.org/t/openstack/buildset/d9890bb234ea4ab8ade144bb673a4195 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c81edf303ac34bfa8a70b571b13a4cfe : SUCCESS in 3m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/407ba7ad3f7446c0b5f6c4db36f0d2f9 : FAILURE in 4m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b32dc731029d4f5a9368a3ca779d293e : SUCCESS in 3m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4a9dd9d30b0b4fbe8d326b638cce1b14 : SUCCESS in 4m 00s