kernel32:path is mostly "path.c:899:TMP=c:\windows\temp"..."path.c:1178: Test failed: expected buf[0] upper case letter got c", probably people whose ~/.wine is old and has a windir that starts with a lowercase drive letter?! Has that changed recently?
I don't think it can be a stale .wine; presuming those were all done with dotests, it creates a new wineprefix for each run.
Cheers,
Jeremy