Yes, the compiler is a permanent construction zone and there can only be so many projects on site, let alone workers. So this feels like something that _should_

Yes, the compiler is a permanent construction zone and there can only be so many projects on site, let alone workers. So this feels like something that _should_ be doable outside the compiler, but using its metadata. (BTW, "rustc --explain <error-code> does at least give you some nice text)