#0  __opendirat (dfd=-100, name=0x0) at ../sysdeps/unix/opendir.c:87
  [Error: ../sysdeps/unix/opendir.c was not found in source tree]
#1  0x00007f993e24a7de in usbfs_get_device_list (_discdevs=0x7fffe41573d8, ctx=0x733040) at ../../libusb/os/linux_usbfs.c:1088
  [Error: ../../libusb/os/linux_usbfs.c was not found in source tree]
#2  op_get_device_list (ctx=0x733040, _discdevs=0x7fffe41573d8) at ../../libusb/os/linux_usbfs.c:1280
  [Error: ../../libusb/os/linux_usbfs.c was not found in source tree]
#3  0x00007f993e2431dc in libusb_get_device_list (ctx=0x733040, list=0x7fffe41574a8) at ../../libusb/core.c:604
  [Error: ../../libusb/core.c was not found in source tree]
#4  0x00007f993e98a9f8 in ?? () from /tmp/tmpbinQiQ/usr/lib/libhpmud.so.0
#5  0x00007f993e97f196 in hpmud_probe_devices () from /tmp/tmpbinQiQ/usr/lib/libhpmud.so.0
#6  0x00007f993ef5f05d in ?? () from /tmp/tmpbinQiQ/usr/lib/sane/libsane-hpaio.so.1
#7  0x00007f993ef5f610 in sane_hpaio_get_devices () from /tmp/tmpbinQiQ/usr/lib/sane/libsane-hpaio.so.1
#8  0x00007f9955f843d6 in sane_dll_get_devices (device_list=device_list@entry=0x7fffe415bc88, local_only=local_only@entry=1) at dll.c:1056
  [Error: dll.c was not found in source tree]
#9  0x00007f9955f81d25 in sane_get_devices (dl=dl@entry=0x7fffe415bc88, local=local@entry=1) at dll-s.c:17
  [Error: dll-s.c was not found in source tree]
#10 0x0000000000402474 in cd_sane_client_refresh (priv=priv@entry=0x6d01c0) at cd-main.c:303
  298: 		 cd_device_get_object_path (device));
  299: 	timestamp = cd_mapping_db_get_timestamp (mapping_db,
  300: 						 cd_device_get_id (device),
  301: 						 cd_profile_get_id (profile),
  302: 						 &error);
  303: 	if (timestamp == G_MAXUINT64) {
  304: 		g_debug ("CdMain: failed to assign, non-fatal: %s",
  305: 			 error->message);
  306: 		g_error_free (error);
  307: 		goto out;
  308: 	}
#11 0x000000000040281a in cd_main_colord_connect_cb (source_object=<optimized out>, res=<optimized out>, user_data=user_data@entry=0x6d01c0) at cd-main.c:446
  441: 		/* add to the device database */
  442: 		ret = cd_device_db_add (device_db,
  443: 					cd_device_get_id (device),
  444: 					&error_local);
  445: 		if (!ret)
  446: 			goto out;
  447: 	}
  448: 
  449: 	/* profile is no longer valid */
  450: 	if (scope == CD_OBJECT_SCOPE_TEMP) {
  451: 		g_signal_connect (device, "invalidate",
#12 0x00007f9955c9174e in g_simple_async_result_complete (simple=0x6d8d70) at /build/buildd/glib2.0-2.33.10/./gio/gsimpleasyncresult.c:775
  [Error: /build/buildd/glib2.0-2.33.10/./gio/gsimpleasyncresult.c was not found in source tree]
#13 0x00007f9955c9187c in complete_in_idle_cb (data=0x6d8d70) at /build/buildd/glib2.0-2.33.10/./gio/gsimpleasyncresult.c:787
  [Error: /build/buildd/glib2.0-2.33.10/./gio/gsimpleasyncresult.c was not found in source tree]
#14 0x00007f995571fdb5 in g_main_dispatch (context=0x6d0200) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:2707
  [Error: /build/buildd/glib2.0-2.33.10/./glib/gmain.c was not found in source tree]
#15 g_main_context_dispatch (context=context@entry=0x6d0200) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3211
  [Error: /build/buildd/glib2.0-2.33.10/./glib/gmain.c was not found in source tree]
#16 0x00007f99557200e8 in g_main_context_iterate (context=0x6d0200, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3282
  [Error: /build/buildd/glib2.0-2.33.10/./glib/gmain.c was not found in source tree]
#17 0x00007f99557204e2 in g_main_loop_run (loop=0x6d0180) at /build/buildd/glib2.0-2.33.10/./glib/gmain.c:3476
  [Error: /build/buildd/glib2.0-2.33.10/./glib/gmain.c was not found in source tree]
#18 0x0000000000401ee5 in main (argc=1, argv=0x7fffe415bfd8) at cd-main.c:617
  612: 		goto out;
  613: 	}
  614: 
  615: 	/* nothing set */
  616: 	if (array->len == 0) {
  617: 		g_debug ("no matched device data for profile %s",
  618: 			 cd_profile_get_id (profile));
  619: 		goto out;
  620: 	}
  621: 
  622: 	/* try to add them */