What would really help is success stories: Who's used it? What have they used it for? What challenges did they encounter? Then again, maybe this is so new that there aren't a lot of success stories yet. :)
The transpiled library now serves as the YAML backend for the widely used serde_yaml crate. Having serde_yaml be pure-Rust code instead of linking C is advantageous for painless cross-compilation as well as making downstream projects runnable in Miri.
Is the intent that this continues to evolve by newer libyaml code getting transpiled, or that it's effectively a fork and might gradually become more idiomatic Rust which does the same job as the C but won't track any changes? Or is this basically "done" and only small changes (to both this code and the C libyaml) are anticipated anyway?
The c2rust documentation cautions that any platform independence isn't preserved, so if libyaml has types which are different on platform A versus platform B, the c2rust transpilation on platform A just gives you Rust types for platform A, losing that independence, was this an issue for libyaml ?