In article <c3pnto$c36$1@colwyn.zhadum.de>,
	tron@zhadum.de (Matthias Scheler) writes:
> Is there a problem report open on this? If there isn't one please submit one.

There is a PR now:

PR lib/24895: mutt crashes on amd64 with Bus Error in libc mbrtowc()

So it appears to be problem in "libc" and the "mutt" package.

	Kind regards

-- 
Matthias Scheler                                  http://scheler.de/~matthias/