For installs that don't use harbormaster, users get a confusing message about a build failure when they try to land diffs with lint or unit failures. Since we're theoretically just using harbormaster as a backend store, it would be nice to instead specifically prompt users that they have lint or unit failures when they try to land their diff (which we probably know because we're using harbormaster autotarget?)
Especially germane since we have a completely different system for continuous integration that runs builds.