No reason to learn Rust or Go - learn Rust and Go. I use Go for most "network service" type stuff at my job. I would probably not choose Rust for those, even if

No reason to learn Rust or Go - learn Rust and Go. I use Go for most "network service" type stuff at my job. I would probably not choose Rust for those, even if I was as comfortable with it as I was with Go (which I'm not, since Go is much, much simpler). There's many variables when considering what language to pick for a problem and if speed was the only thing we cared about, we'd just do raw assembly always.