Progamming inside a Attiny85 with rust

Question

Introduction

I created a small project that uploads C++ code to an Attiny85, for this I used arduino.

Question

But I would have liked to know if it was possible to download and run rust code in Attiny85 or other Attiny. If we can, how do we do it?

Details

I found this GitHub repo to do this, but it is not explicit on how can export the rust code to Attiny. The GitHub repo in question: https://github.com/q231950/avr-attiny85-rust?ref=https://githubhelp.com