Build failed. https://zuul.opendev.org/t/openstack/buildset/40b2c01a0901418cbf82c67da69bb075 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/51599c38a81542c0acdc2e26b8769213 : SUCCESS in 3m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/aaede12481f940e0bb2cbffaf7908fa1 : SUCCESS in 2m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/60cbcc41b05446ee9ecc40a904e43f2f : SUCCESS in 3m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/731ff4bfd73e4e43abbd3b1820259d87 : FAILURE in 3m 20s