#0  0x0000000000000000 in ?? ()
#1  0x00007fb923e3f245 in g_closure_invoke (closure=0x8d28c0, return_value=0x0, n_param_values=2, param_values=0x7fffb016edf0, invocation_hint=0x7fffb016ed90) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gclosure.c:768
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gclosure.c was not found in source tree]
#2  0x00007fb923e5081b in signal_emit_unlocked_R (node=node@entry=0x8d2c90, detail=detail@entry=0, instance=instance@entry=0xb024f0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffb016edf0) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c:3483
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c was not found in source tree]
#3  0x00007fb923e59758 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffb016ef80) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c:3309
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c was not found in source tree]
#4  0x00007fb923e599bf in g_signal_emit (instance=instance@entry=0xb024f0, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c:3365
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c was not found in source tree]
#5  0x00007fb924e8a261 in _gtk_widget_grab_notify (widget=widget@entry=0xb024f0, was_grabbed=was_grabbed@entry=0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkwidget.c:8038
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkwidget.c was not found in source tree]
#6  0x00007fb924d41a9b in gtk_grab_notify_foreach (child=0xb024f0, data=0x7fffb016f2c0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c:1996
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c was not found in source tree]
#7  0x00007fb924dc530d in gtk_scrolled_window_forall (container=<optimized out>, include_internals=1, callback=0x7fb924d418e0 <gtk_grab_notify_foreach>, callback_data=0x7fffb016f2c0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkscrolledwindow.c:1796
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkscrolledwindow.c was not found in source tree]
#8  0x00007fb924d41b12 in gtk_grab_notify_foreach (child=0xaba380, data=0x7fffb016f2c0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c:1964
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c was not found in source tree]
#9  0x00007fb924c3c40f in gtk_box_forall (container=<optimized out>, include_internals=<optimized out>, callback=0x7fb924d418e0 <gtk_grab_notify_foreach>, callback_data=0x7fffb016f2c0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkbox.c:2558
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkbox.c was not found in source tree]
#10 0x00007fb924d41b12 in gtk_grab_notify_foreach (child=0xae8a50, data=0x7fffb016f2c0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c:1964
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c was not found in source tree]
#11 0x00007fb924c3c40f in gtk_box_forall (container=<optimized out>, include_internals=<optimized out>, callback=0x7fb924d418e0 <gtk_grab_notify_foreach>, callback_data=0x7fffb016f2c0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkbox.c:2558
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkbox.c was not found in source tree]
#12 0x00007fb924d41b12 in gtk_grab_notify_foreach (child=0xae8900, data=0x7fffb016f2c0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c:1964
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c was not found in source tree]
#13 0x00007fb924ea2ee9 in gtk_window_forall (container=0xac42a0, include_internals=1, callback=0x7fb924d418e0 <gtk_grab_notify_foreach>, callback_data=0x7fffb016f2c0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkwindow.c:7854
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkwindow.c was not found in source tree]
#14 0x00007fb924d41b12 in gtk_grab_notify_foreach (child=0xac42a0, data=data@entry=0x7fffb016f2c0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c:1964
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c was not found in source tree]
#15 0x00007fb924d41c7b in gtk_grab_notify (group=0xedc0e0, device=device@entry=0x8e55c0, old_grab_widget=<optimized out>, new_grab_widget=<optimized out>, from_grab=from_grab@entry=1) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c:2037
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c was not found in source tree]
#16 0x00007fb924d42790 in gtk_device_grab_add (widget=<optimized out>, device=device@entry=0x8e55c0, block_others=block_others@entry=1) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c:2171
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c was not found in source tree]
#17 0x00007fb924d57e89 in gtk_menu_popup_for_device (menu=0xf32350, device=<optimized out>, parent_menu_shell=<optimized out>, parent_menu_item=<optimized out>, func=<optimized out>, data=<optimized out>, destroy=0x0, button=3, activate_time=40716955) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmenu.c:1743
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmenu.c was not found in source tree]
#18 0x00007fb924e23cf6 in popup_targets_received (clipboard=0xb024f0, data=0x3, user_data=0xa00500) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtktextview.c:8876
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtktextview.c was not found in source tree]
#19 0x00007fb924eb1487 in selection_received (widget=0xada8d0, selection_data=0x7fffb016fb10, time=<optimized out>) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkclipboard.c:940
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkclipboard.c was not found in source tree]
#20 0x00007fb923e3f245 in g_closure_invoke (closure=0xf10e20, return_value=0x0, n_param_values=3, param_values=0x7fffb016f7c0, invocation_hint=0x7fffb016f760) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gclosure.c:768
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gclosure.c was not found in source tree]
#21 0x00007fb923e50f4c in signal_emit_unlocked_R (node=node@entry=0x8d5920, detail=detail@entry=0, instance=instance@entry=0xada8d0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffb016f7c0) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c:3553
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c was not found in source tree]
#22 0x00007fb923e59758 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=<optimized out>) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c:3309
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c was not found in source tree]
#23 0x00007fb923e59f0a in g_signal_emit_by_name (instance=0xb024f0, detailed_signal=0x0, detailed_signal@entry=0x7fb924f43c43 "selection-received") at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c:3405
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c was not found in source tree]
#24 0x00007fb924dc9993 in gtk_selection_retrieval_report (info=info@entry=0x7fb904001960, type=<optimized out>, format=<optimized out>, buffer=<optimized out>, length=length@entry=64, time=40716955) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkselection.c:3023
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkselection.c was not found in source tree]
#25 0x00007fb924dcd980 in _gtk_selection_notify (widget=<optimized out>, event=0xec98e0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkselection.c:2827
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkselection.c was not found in source tree]
#26 0x00007fb924d43d1e in _gtk_marshal_BOOLEAN__BOXEDv (closure=0x8d5420, return_value=0x7fffb016fd00, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x8d5450) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmarshalers.c:130
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmarshalers.c was not found in source tree]
#27 0x00007fb923e3f474 in _g_closure_invoke_va (closure=0xb024f0, closure@entry=0x8d5420, return_value=0x0, return_value@entry=0x7fffb016fd00, instance=0x8c88a0, instance@entry=0xada8d0, args=0x7fffb016edf0, args@entry=0x7fffb016fe00, n_params=-1340674672, param_types=0x7fb91c681be0 <scrollbar_mode_changed_unload_gfunc+24>) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gclosure.c:831
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gclosure.c was not found in source tree]
#28 0x00007fb923e58b10 in g_signal_emit_valist (instance=0xada8d0, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffb016fe00) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c:3218
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c was not found in source tree]
#29 0x00007fb923e599bf in g_signal_emit (instance=instance@entry=0xada8d0, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c:3365
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gobject/gsignal.c was not found in source tree]
#30 0x00007fb924e8b284 in gtk_widget_event_internal (widget=0xada8d0, event=0xec98e0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkwidget.c:7775
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkwidget.c was not found in source tree]
#31 0x00007fb924d4302a in gtk_main_do_event (event=0xec98e0) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c:1695
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gtk/gtkmain.c was not found in source tree]
#32 0x00007fb9248c1522 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gdk/x11/gdkeventsource.c:364
  [Error: /build/buildd/gtk+3.0-3.13.9~git20140904.7f728f4d/./gdk/x11/gdkeventsource.c was not found in source tree]
#33 0x00007fb923805c2d in g_main_dispatch (context=0x8f8110) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./glib/gmain.c:3064
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./glib/gmain.c was not found in source tree]
#34 g_main_context_dispatch (context=context@entry=0x8f8110) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./glib/gmain.c:3663
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./glib/gmain.c was not found in source tree]
#35 0x00007fb923805f18 in g_main_context_iterate (context=context@entry=0x8f8110, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./glib/gmain.c:3734
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./glib/gmain.c was not found in source tree]
#36 0x00007fb923805fcc in g_main_context_iteration (context=0x8f8110, context@entry=0x0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./glib/gmain.c:3795
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./glib/gmain.c was not found in source tree]
#37 0x00007fb92437500c in g_application_run (application=application@entry=0x9144b0, argc=1, argv=0x7fffb0170288) at /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gio/gapplication.c:2282
  [Error: /build/buildd/glib2.0-2.41.3+git20140829.a78443a1/./gio/gapplication.c was not found in source tree]
#38 0x000000000041368e in calculator_main (args=0x7fffb0170288, args_length1=1) at gnome-calculator.c:1457
  1452: }
  1453: 
  1454: 
  1455: static void _vala_array_destroy (gpointer array, gint array_length, GDestroyNotify destroy_func) {
  1456: 	if ((array != NULL) && (destroy_func != NULL)) {
  1457: 		int i;
  1458: 		for (i = 0; i < array_length; i = i + 1) {
  1459: 			if (((gpointer*) array)[i] != NULL) {
  1460: 				destroy_func (((gpointer*) array)[i]);
  1461: 			}
  1462: 		}
#39 0x00007fb922ef4ec5 in __libc_start_main (main=0x411ec0 <main>, argc=1, argv=0x7fffb0170288, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb0170278) at libc-start.c:287
  [Error: libc-start.c was not found in source tree]
#40 0x0000000000411f03 in _start ()