Build failed. https://zuul.opendev.org/t/openstack/buildset/b7215385b052400cb280c4d03f52cb8b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b8f55e18879c4d75847f7e1d365fc6aa : SUCCESS in 4m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/526bcb94bd254a888005e32b950943bd : SUCCESS in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ec1fb29ef61c41a58d7398f88140b102 : FAILURE in 4m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ea323a6ec8f749f69b2f8e7a13135e03 : FAILURE in 3m 05s