#0  0x00007f728f575f79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  [Error: ../nptl/sysdeps/unix/sysv/linux/raise.c was not found in source tree]
#1  0x00007f728f579388 in __GI_abort () at abort.c:89
  [Error: abort.c was not found in source tree]
#2  0x00007f728f56ee36 in __assert_fail_base (fmt=0x7f728f6c04b8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f729002558a "key", file=file@entry=0x7f7290025905 "strlst.c", line=line@entry=381, function=function@entry=0x7f7290025a30 "avahi_string_list_find") at assert.c:92
  [Error: assert.c was not found in source tree]
#3  0x00007f728f56eee2 in __GI___assert_fail (assertion=0x7f729002558a "key", file=0x7f7290025905 "strlst.c", line=381, function=0x7f7290025a30 "avahi_string_list_find") at assert.c:101
  [Error: assert.c was not found in source tree]
#4  0x00007f7290021ba4 in avahi_string_list_find () from /tmp/apport_sandbox_hNv2aV/usr/lib/x86_64-linux-gnu/libavahi-common.so.3
#5  0x00000000004057be in generate_local_queue (host=host@entry=0x23abfd8 "zMac.local", port=port@entry=9631, resource=<optimized out>, name=name@entry=0x23abf9c "Brother HL-2270DW series", type=type@entry=0x23abfbc "_ipp._tcp", domain=domain@entry=0x23abfcc "local", txt=txt@entry=0x23a82f0) at utils/cups-browsed.c:979
  [Error: utils/cups-browsed.c was not found in source tree]
#6  0x0000000000405f93 in resolve_callback (r=0x2397950, interface=<optimized out>, protocol=<optimized out>, event=<optimized out>, name=0x23abf9c "Brother HL-2270DW series", type=0x23abfbc "_ipp._tcp", domain=0x23abfcc "local", host_name=0x23abfd8 "zMac.local", address=0x7fff29371e00, port=9631, txt=0x23a82f0, flags=(AVAHI_LOOKUP_RESULT_CACHED | AVAHI_LOOKUP_RESULT_MULTICAST), userdata=0x23a4460) at utils/cups-browsed.c:1203
  [Error: utils/cups-browsed.c was not found in source tree]
#7  0x00007f728fe155cb in avahi_service_resolver_event () from /tmp/apport_sandbox_hNv2aV/usr/lib/x86_64-linux-gnu/libavahi-client.so.3
#8  0x00007f728fe10ecc in ?? () from /tmp/apport_sandbox_hNv2aV/usr/lib/x86_64-linux-gnu/libavahi-client.so.3
#9  0x00007f728e8e59b6 in dbus_connection_dispatch (connection=0x23966f0) at ../../dbus/dbus-connection.c:4631
  [Error: ../../dbus/dbus-connection.c was not found in source tree]
#10 0x00007f728fe175f6 in ?? () from /tmp/apport_sandbox_hNv2aV/usr/lib/x86_64-linux-gnu/libavahi-client.so.3
#11 0x00007f728fc09450 in ?? () from /tmp/apport_sandbox_hNv2aV/usr/lib/x86_64-linux-gnu/libavahi-glib.so.1
#12 0x00007f728f94de24 in g_main_dispatch (context=0x23a4230) at /build/buildd/glib2.0-2.39.90/./glib/gmain.c:3066
  [Error: /build/buildd/glib2.0-2.39.90/./glib/gmain.c was not found in source tree]
#13 g_main_context_dispatch (context=context@entry=0x23a4230) at /build/buildd/glib2.0-2.39.90/./glib/gmain.c:3641
  [Error: /build/buildd/glib2.0-2.39.90/./glib/gmain.c was not found in source tree]
#14 0x00007f728f94e068 in g_main_context_iterate (context=0x23a4230, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.39.90/./glib/gmain.c:3712
  [Error: /build/buildd/glib2.0-2.39.90/./glib/gmain.c was not found in source tree]
#15 0x00007f728f94e32a in g_main_loop_run (loop=0x235f6b0) at /build/buildd/glib2.0-2.39.90/./glib/gmain.c:3906
  [Error: /build/buildd/glib2.0-2.39.90/./glib/gmain.c was not found in source tree]
#16 0x0000000000403703 in main (argc=<optimized out>, argv=<optimized out>) at utils/cups-browsed.c:2884
  [Error: utils/cups-browsed.c was not found in source tree]