In cargo book, consider giving guidance on purpose of 'authors' field.

[brson]

It occurs to me that there are two ways to think of it - a list of the majority / original authors of the software, or a list of contacts / current maintainers. I've thought of it as the former, but maybe it's intended as the latter; maybe it's intentionally open for interpretation.

[brson]

re https://doc.rust-lang.org/cargo/reference/manifest.html. The only text I see on it is 'mandatory'.