I love Rust, but Go is a much much simpler language, especially for network services. For example, the experience of goroutines vs rust async is night and day in terms of complexity. Also, the borrow-checker introduces a lot more ceremony when managing network peer entities, particularly structuring relationships between entities - a very common requirement in network applications.

Not that I'm against Rust for network services, but with Rust you're accepting increased complexity for increased safety - a worthwhile tradeoff depending on the project.