depfuzz requirements of maven are unclear

[zack-sampson]

Howdy yall, I'm trying to use depfuzz but I believe the requirements may be incomplete. In particular, it seems to require that some specific libraries are specified in my project's WORKSPACE file.

• it complains that @maven//:com_github_tomas_langer_chalk is missing from my project's maven_install invocation.
• there seems to be an implicit dependency on a fixed version of guava being pulled in by my maven_install. guava 21.0 appears to be insufficient.

Is this intended? Feels like abstraction leak to me, but if it's intentional, it should be specified in your setup docs.