POSIX threads are far more battle-proven than any threading API in Rust. All of the underlying multi-threading on the system you made your comment from is using pthreads. It works fine in reality, despite all the pearl clutching.
>Rust makes it so that you can't forget.
And the tradeoff is an unreadable, puke-inducing one-liner. You can do a (readable) scoped lock with a macro in C (GCC defines the __attribute__ cleanup) or RAII-style with destructors in C++.
