[Rust] How to auto-generate license information for a spec file

Hi! cargo has the "cargo-license" command that will find all licenses for a project's dependencies. Is there something similar to use when packaging for Fedora? Such a tool would find fewer dependencies and possibly fewer licenses, since "cargo license" picks up, e.g., winapi dependencies, which are irrelevant to Fedora. Thanks for any help you can give me, - mulhern -- The question with me is not whether you have a right to render your people miserable, but whether it is not your interest to make them happy. It is not what a lawyer tells me what I may do, but what humanity, reason and justice tell me I ought to to do. Is a politic act the worse for being a generous one? Is no concession proper but that which is made from your want of right to keep what you grant? - Edmund Burke, "Conciliation with America", 1775