Build failed. https://zuul.opendev.org/t/openstack/buildset/22ce2ee5c1e54f60a2c4074f36a03386 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/603778806e2b4faabab751492b99dc52 : SUCCESS in 3m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f01af17fcddf472d8a54030890eadbb7 : FAILURE in 3m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/293bf2a6b57d4e089e9e205ab385d31b : SUCCESS in 3m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c716ea02bff14544b0b905acc608edd9 : SUCCESS in 3m 57s