Build failed. https://zuul.opendev.org/t/openstack/buildset/513f55709fc44e7697e4e8362f3ba1eb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/46e1c98ee72541cb8358c19743887172 : SUCCESS in 2m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/93a06c3863b542a59be5f54b58b8fa12 : SUCCESS in 3m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b0af4612af844f24a880f7931d99d733 : SUCCESS in 2m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/eb1caaaa7b70489ebdc8f8df6bc2c40a : FAILURE in 2m 27s