I think you need to qualify the aspects, in which you think Rust is 7-8 years back. I rather have the impression, that the designers of the Go language had a to

I think you need to qualify the aspects, in which you think Rust is 7-8 years back. I rather have the impression, that the designers of the Go language had a too simplistic view of what Go should offer and then it took them 12 years to get something as common as generics. Rust has many language features and of course had generics waaay before Go. In general it seems the Rust ecosystem does sometimes have things later, but therefore better or correct when it arrives at a solution. In terms of language design Go is the one that seems way behind.