Isn't it just a normal Rust program ?</troll>

We ran something similar in 2016: https://blog.rust-lang.org/2016/12/15/Underhanded-Rust.html

I like the idea, but I think Rust is too picky of a language to use for something like that. IOCCC is fun because of how interesting it is to watch seasoned C professionals finesse their favorite language. A Rust variant would likely end in tears, copious compiler warnings and perhaps blood.