Comment by gnuvince

As far as I know, Rust now has an LL(1) grammar, which means that writing parsers for it can be done by hand (or with the more powerful LALR(1) and LR(1) parser generators). This is very important for humans too, because it means more people are likely to write tools to process Rust code. If you hope to have automatic indentation, auto-completion, refactoring, formatting tools, etc. keeping the syntax simple is really important.