There are links from the Lion Leaks bot to a leak viewer, like <http://build.webkit.org/LeaksViewer/?url=%2Fresults%2FLion%20Leaks%2Fr113199%20%282957%29%2F> If you try to load this, it never shows any data. It's stuck in loading mode.
Maybe this is why: 11:16:26.160 28877 Failed to run leaks tool: Failed to run "[u'Tools/Scripts/run-leaks', u'--exclude-callstack=Flash_EnforceLocalSecurity', u'--exclude-calls..." exit_code: 1 cwd: /Volumes/Data/slave/lion-intel-leaks/build leaks: unable to get permission to examine process
I rebooted that machine, and now 'leaks' run manually works. Let's see if we start to get data now.
It works now.