Hi Ximin, Sylvestre, Fabian, all, In Rust for Linux, we are considering using host-only/userspace Rust libraries (e.g. `syn`), and we were asked to check whether it would be possible to just pick them from the distribution (since, in principle, they don't require kernel-specific changes).
What is the policy in Debian for those? I was told about `debcargo-conf` by Zixing Liu, and indeed I can see e.g. `syn` there in `librust-syn-dev`, which places the sources at `/usr/share/cargo/registry/`, which is great for what we need. Is that correct? This would be useful for kernel developers that do not trust third-party repositories (not even Rust's/crates.io/the upstream repository). By the way, is there a way to query where the sources are (i.e. that path) in a "standard" way (e.g. like `pkg-config`)? Or, at least, can we assume it should be stable? (e.g. for automated detection and/or instructions we may want to provide). Thanks! Cheers, Miguel

