Created attachment 12326 [details]
backtrace

Created attachment 12327 [details]
pan run with --debug

It's crashing in pango, the gtk font rendering library.

There have been a lot of reports of this crash on the
pan-users mailing list.  I can think of three things that
could cause this:

(1) Pan needs to specify a pango prerequisite, rather than
    doing it implicitly via its gtk prerequisite. (Unlikely)
(2) Pango needs to specify a newer version number for one
    of its prerequisites.
(3) Both Pango and pan are installed correctly, but something
    is wrong with your font configuration on Debian.

I don't know which of these is the case, so I'm cc'ing Owen
of Pango fame to get a second opinion. :)

FYI: one debian user reported that the problem was fixed when he
upgraded libc.

*** This bug has been marked as a duplicate of 91658 ***