Not sure if rust is significantly harder to learn than Go, but as a Java dev I was able to pickup go and make contributions in around a week or so. Yeah I was slower, but we had some really good Go devs who had all of the tooling and packages laid out with best practices. This made it easy for new devs to jump into it.
I think the issue happens when you have a new rust/go/javascript/etc. dev trying to setup a project for the first time.
I think the issue happens when you have a new rust/go/javascript/etc. dev trying to setup a project for the first time.