This critique makes no sense to me. The composition-based object system mirrors Go's. enums aren't original (ML, anyone? 1970s tech?) or weird (every new language from this decade has them, including Swift, and C++ will have them by C++20). Error handling is literally Go's `if err` pattern but first-class (Swift's error handling is quite similar as well). And your disdain for closures has long been noted and I reiterate that your concerns are overblown.

If you don't like Rust, that's A-OK. If you can't quite put your finger on why you don't like Rust, that's fine too. But please don't pass off your vague concerns as substantive criticism.