I was a little surprised that a compiler was in scope given the amount of other work that needed to be written and (hopefully) supported, though I guess that's a different issue.
The C standard working group is currently debating whether to add lambdas to the language:
At that point, why not just use Rust?
I don't see why it's some sort of requirement.
My question though was more about rust as a language. Does it have a golden standard introduction to it like C does. Not 'some sort of requirement', but genuine interest in a clear path to learn the language.
You'd have to be specific. If you are looking for simplicity, nothing will ever beat C, but just because a languague is simple doesn't mean it's easy to program. See Brainfuck.
Generally Rust Book is considered a gold standard, but I rarely read them unless I am truly at a loss what next.
You can implement it and it's a bit harder in Rust https://rust-unofficial.github.io/too-many-lists/index.html