Summary says it all - this make it hard to determine if something was a regression, and if so, when it regressed. Crash log coming.
Created attachment 26746 [details] crash log
Nightly builds prior to r37348 lack functionality that Safari 3.2 requires to function. There's nothing that we can do about this. We certainly can't go back in time and fix these builds. Regressing back past that point can be achieved by using Safari 3.1.
So is Safari 3.1 downloadable, and usable simultaneously with 3.2? If not, it makes volunteer contributions for all but the most recent regressions impossible :-(
That is unfortunate, but I don't see what can be done about it.