Build failed. https://zuul.opendev.org/t/openstack/buildset/0ba89f2add894bab9713dd570904aad4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2c6733708df44c1d9787d8c37095cc80 : SUCCESS in 3m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4f7f4dccee534211b09d14207b96fabb : SUCCESS in 3m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3eeb637640c74176bd7a3efbea0144c1 : FAILURE in 3m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9cb6e539e77e421aadb4a8f93264d2e4 : FAILURE in 3m 20s