https://bugs.winehq.org/show_bug.cgi?id=38653
--- Comment #18 from Marcus Meissner marcus@jet.franken.de --- The wine staging bug references as first comment a 32bit backtrace.
I have found the next crash during 64bit startup, in rpcrt4 and reported it to gcc.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66845