tldr: All devstack based jobs are going to fail with newer versions of git - don't bother rechecking git has released a security fix [1] that is starting to roll out in distributions (Ubuntu focal for example) that will cause pbr to be unable to access the package metadata for packages checked out locally due to the directory ownership used in devstack. We have opened a devstack bug to track this issue: https://bugs.launchpad.net/devstack/+bug/1968798 Please see the bug for the details and example error. Michael P.S. Thanks to clarkb, fungi, and ianw for helping track down the root cause! [1] https://github.com/git/git/commit/8959555cee7ec045958f9b6dd62e541affb7e7d9