I'm under the impression that Rust isn't near done and ready for production use. Go has been ready for a couple years. Rust could be 10 times better but I'm not going to touch it until they ship 1.0.
"It’s important to be clear about what we mean by stable. We don’t mean that Rust will stop evolving. We will release new versions of Rust on a regular, frequent basis, and we hope that people will upgrade just as regularly. But for that to happen, those upgrades need to be painless." [0]