If your requirement is compiling to native binaries, then perhaps dlang with GC enabled? Admittedly it would be a really poor choice in 2020 though given the lack of adoption. Golang is GCd and native, but of course the language is lacking in many ways compared to Rust.

So I guess you're right, nothing I can think of quite fills the niche that Rust does, if compiling to a native binary is a hard requirement. Also I'm not aware of any widely-adopted language with borrow checking, if that's a feature that's valuable for your use case.

Java, Kotlin, Scala, C#, F#, OCaml, Haskell, D, Swift, Ada, Go all can compile to native binaries, yes even Java and .NET.