Solid advance. I chose to learn Rust in depth first because I read (and have seen) that it's the language of choice for working with WASM, which is what I'll be doing. Cargo also seemed to be universally well received from what I read about it compared to Golang's package management. Ultimately I see myself using both Rust and Golang, but perhaps just Rust until Golang 2 is stable, since I won't even need it for another year perhaps.