The bisect-builds script needs a different lower limit when used with Safari 3.0 on Mac OS X 10.5 (9A581) Leopard. I know it works with at least r25124 or newer.
bisect-builds --progressive itself reports: Fails: r25065 Works: r25124
Safari 2.0.4 actually runs on Leopard. The earliest version of WebKit nightlies that runs in this configuration is: Fails: r19593 Works: r19594
Created attachment 17034 [details] Patch v1 Patch v1
Comment on attachment 17034 [details] Patch v1 r=me
Committed r27434