Summary

In ten “scratch builds” of Fedora’s uv package, the test registry_client::tests::test_redirect_to_server_with_credentials failed once on ppc64le:

failures:
---- registry_client::tests::test_redirect_to_server_with_credentials stdout ----
thread 'registry_client::tests::test_redirect_to_server_with_credentials' panicked at crates/uv-client/src/registry_client.rs:1425:9:
assertion `left == right` failed: Requests should fail if credentials are missing
  left: 200
 right: 401
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

This seems to be a relatively new issue in the 0.9.x series. I have seen it a couple of times, always on ppc64le. I don’t know if the problem is arch-specific, or if there is just a race condition that happens to be easier to hit on that architecture. I am temporarily without access to a computer with enough RAM to easily build uv locally, so I didn’t try to investigate this further. I’m just skipping the test for now.

Platform

Fedora Rawhide, ppc64le

Version

uv 0.9.5

Python version

Python 3.14.0