rust-lang/cargo — pull request #294 by alexcrichton (2014-07-30 00:37:37+00:00)
Title: Implement per-target fingerprints

This is a series of commits which culminate in fixing #214. The last remaining bit is that freshness for an entire package is still considered if the package has a `build` command, but that is pretty easy to fix and I plan on doing so soon-ish.