You can write simple http server or rest client with stdlib in Go. No need to include tokio, serde and hundred other cargos which constantly break things. I have apps written in Go more than a decade ago work the same now with recent version of Go. Where as, I had issues with getting few year old github apps in rust compiling and working in rust.
I know what you mean about Go vs. Rust here and I've seen it firsthand, though I believe the effect is overblown. I was able to modernize a fairly old project in literal 15 minutes by using Cargo Clippy's fix mode + a few small hand-crafted changes.
To me a rich stdlib is not a selling point. Both ecosystems have a ton of very high-quality libraries.