ljakab proposed an IMHO very nice idea in private email:

One very useful enhancement to the bot would be for it to generate a quick script for doing the above (and attach it to this email): check out the affected dependencies with the patches applied (with 'git review -d xxxxx'), and do the build. According to the links below, all the information is already available. I think that would improve responsiveness from projects, and reduce potential for errors ("did I build all dependencies?") when testing.