Most projects use c bindings; it's not unfair to say that the quality of many of the c bindings on crates.io doesn't match the quality of stuff in the standard

Most projects use c bindings; it's not unfair to say that the quality of many of the c bindings on crates.io doesn't match the quality of stuff in the standard library. (ie sure, maybe you're not writing unsafe yourself, but you'll quite possibly hit an issue where you have to dig into a crate that does)