Comment by zinclozenge

None with the same performance characteristics, ease of use, and ecosystem size. I'm reasonably competent with Rust, but sometimes I don't want to bash my head against the borrow checker or litter my code with copy/clone. Go hits a nice sweet spot, my main quibbles are that there's no native iterators/comprehensions or sum types with compiler checked exhaustive matching. With generics we can get libraries that allow for more functional style programming, and golangci-lint has a linter for exhaustiveness.