Whilst there is some crossover, The two languages occupy different niches, and have quite different philosophies driving their design.
Rust is far more extensible than Go - for example all of the concurrency primitives are built as libraries, and users can create their own depending on their unique use cases. Go's on the other hand are built in, and are difficult to extend.
Rust aims for generic, zero cost abstractions and control over allocation without compromising on safety, but this means the type system is more complex than Go's. Go's static type system is quite simple, and easy to learn, but is hard to write generic abstractions over unless you want to resort to using `interface {}`. Go also uses a mandatory GC which makes low level programming and interfacing with C difficult, but abstracts away from up-front memory management.
Rust's compiler is slow, but generates very fast code because it performs a great deal of static optimizations via LLVM. Go on the other hand builds blazingly fast but performs little to no optimization at compile time, nor compensates for that with a JIT.
If you want raw performance, control over allocation, and an expressive type system, choose Rust. If you want simplicity without having to think about allocation, choose Go.
Rust is far more extensible than Go - for example all of the concurrency primitives are built as libraries, and users can create their own depending on their unique use cases. Go's on the other hand are built in, and are difficult to extend.
Rust aims for generic, zero cost abstractions and control over allocation without compromising on safety, but this means the type system is more complex than Go's. Go's static type system is quite simple, and easy to learn, but is hard to write generic abstractions over unless you want to resort to using `interface {}`. Go also uses a mandatory GC which makes low level programming and interfacing with C difficult, but abstracts away from up-front memory management.
Rust's compiler is slow, but generates very fast code because it performs a great deal of static optimizations via LLVM. Go on the other hand builds blazingly fast but performs little to no optimization at compile time, nor compensates for that with a JIT.
If you want raw performance, control over allocation, and an expressive type system, choose Rust. If you want simplicity without having to think about allocation, choose Go.