https://bugs.winehq.org/show_bug.cgi?id=56530
--- Comment #4 from Zeb Figura z.figura12@gmail.com --- (In reply to Zeb Figura from comment #3)
Ah interesting, -g makes the difference. I wonder if there's a leak in dbghelp then.
That wouldn't explain why c065b4fe0b is to blame, though. Are you sure that's not just bug 55654?