Build failed. https://zuul.opendev.org/t/openstack/buildset/9b1c2904b20548a18f2cca3b075adebc - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/66260a73710e452188c5e1f789836140 : SUCCESS in 6m 06s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/24c6873b05064fa7a153bc1d8885e3f1 : FAILURE in 6m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3455cf94c4d147dbab38dbf35a67a638 : SUCCESS in 6m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/58ffa9ac63b14bedbf75b8677fc24864 : SUCCESS in 7m 23s