Rust seems to have its merits but I find the parent post more level headed in that it tries to characterize language runtime, admittedly subjectively but not in a rust==good, rest==bad way.
Go's race detector is useful and we've caught bugs using it, but it's nicer when the compiler prevents you from having those bugs in the first place.
>quite good concurrency primitives
That's gonna be a "yikes" from me, dog: https://www.jtolio.com/2016/03/go-channels-are-bad-and-you-s...
I'm not a Rust fanboy, I simply like languages where it's more difficult to represent invalid state (Haskell, Ocaml, Rust, etc.) than in the mainstream languages I suffer with in my job on a daily basis. Rust happens to have great tooling and is the most likely to make inroads on these issues I care about (runtime stability + code correctness via good type system).