Hi,

py-key-value-aio currently pin

as their build backend. All uv-build releases < 0.11.4 have a structural bug in
their sdist that breaks cargo --locked (hermetic
builds). The upstream fix landed in uv-build==0.11.4 with astral-sh/uv#18824.

I don't mind opening the PR to fix the issue if necessary.

References

• Upstream fix: Patch Cargo.lock in uv-build source distributions astral-sh/uv#18831
• Fixed release: https://github.com/astral-sh/uv/releases/tag/0.11.4