I take it you have your own distro (?)

There's an age-old struggle between devs and distro packagers. Devs want nice tools to make their lives easy, understandably. Packagers want everything to be the same to make their lives easy, also understandable.

IMO Rust doesn't really replace Java, Go does - and by that I mean it's an approachable language for problems where you're ok with having a GC running in the background. I'm NOT saying that Go has Java's problems, because it really doesn't, it's a pretty nice language overall.

Rust more replaces C++ than anything IMO.

By "grow" I mean new projects emerging that are written in it.