It took some time but it’s finally there!
scan.coverity.com/projects/1005?tab=Overview
Feel free to ask to join and write about it here so I’d be more or less sure it’s really you.
Joining.
Done.
My fault is that I forgot to add filters to “Analysis settings” tab, it’ll show some warnings from /usr/lib, will be fixed with the next check.
It has some limitations, afaik we can’t submit build a lot of times per week but I’ve never reached this point with SuperTuxKart project. 
Regarding build, it took about 2.5 hours to make a coverity build, the result was ~550mb which were uploaded to their site then.
Ran cppcheck with the latest revision (marked as 0.96b)
As usual, rename .txt file to xml one. Cppcheck-gui will help to sort and remove false-positives. Even though there are tons of FP, I really dislike that amount of warnings. 
coverity build will be ready in 1-2 days, will update this post.
result.txt (890 KB)
Will check at least errors, thanks for report.
Seems like in newly detected problems there are both false-positives and real problems. It’d be great to do some rules for coverity but it’s better just to sort bugs that already exist 