I really think it is about the kind of dev you want to be. Judging from your question you're early in your carreer / a student: so in order to choose between th

I really think it is about the kind of dev you want to be. Judging from your question you're early in your carreer / a student: so in order to choose between these two (I'd recommend both, by the way, or as many languages as you can, but do become an expert in one), you need to choose where you want to head. Rust is often (not exclusively) used for more low level stuff, down to firmware, where Go is generally used for higher level stuff, among others networking, web and such. I think if you find what level of programming interests you, the tools will follow from that.