In addition to the errors in bug 73017 (T75017), welcome has two other serious coding issues
E:722,20: Class 'User' has no 'getall' member (no-member)
E:725,25: Instance of 'WelcomeBot' has no '_parseNewUserLogOld' member (no-member)
It is in a branch of code that needs the -quick parameter to be invoked, and looks like it is trying to
- preload the pages, and
- fallback to an implementation which wasnt ported.