#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:58
  [Error: raise.c was not found in source tree]
#1  0x00007f21ad2b23ea in __GI_abort () at abort.c:89
  [Error: abort.c was not found in source tree]
#2  0x00007f21adb1d135 in g_assertion_message () from /tmp/apport_sandbox_CZ00Kb/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f21adb1d1ca in g_assertion_message_expr () from /tmp/apport_sandbox_CZ00Kb/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f21aef12257 in ensure_surface_for_gicon (self=self@entry=0x556dd77aa250, style=0x556dd79899d0, dir=dir@entry=GTK_TEXT_DIR_LTR, scale=scale@entry=1, gicon=gicon@entry=0x7f219c00b160) at ././gtk/gtkiconhelper.c:493
  [Error: gtkiconhelper.c was not found in source tree]
#5  0x00007f21aef12955 in gtk_icon_helper_load_surface (self=self@entry=0x556dd77aa250, scale=1) at ././gtk/gtkiconhelper.c:573
  [Error: gtkiconhelper.c was not found in source tree]
#6  0x00007f21aef12a24 in gtk_icon_helper_ensure_surface (self=self@entry=0x556dd77aa250) at ././gtk/gtkiconhelper.c:601
  [Error: gtkiconhelper.c was not found in source tree]
#7  0x00007f21aef12c18 in gtk_icon_helper_ensure_surface (self=0x556dd77aa250) at ././gtk/gtkiconhelper.c:645
  [Error: gtkiconhelper.c was not found in source tree]
#8  _gtk_icon_helper_get_size (self=0x556dd77aa250, width_out=width_out@entry=0x7fffa1ce1138, height_out=height_out@entry=0x7fffa1ce113c) at ././gtk/gtkiconhelper.c:660
  [Error: gtkiconhelper.c was not found in source tree]
#9  0x00007f21aef2627d in gtk_image_get_content_size (gadget=<optimized out>, orientation=GTK_ORIENTATION_VERTICAL, for_size=<optimized out>, minimum=0x7fffa1ce12d8, natural=0x7fffa1ce12dc, minimum_baseline=0x7fffa1ce12e0, natural_baseline=0x7fffa1ce12e4, unused=0x0) at ././gtk/gtkimage.c:1682
  [Error: gtkimage.c was not found in source tree]
#10 0x00007f21aee8cb03 in gtk_css_custom_gadget_get_preferred_size (gadget=<optimized out>, orientation=<optimized out>, for_size=<optimized out>, minimum=<optimized out>, natural=<optimized out>, minimum_baseline=<optimized out>, natural_baseline=0x7fffa1ce12e4) at ././gtk/gtkcsscustomgadget.c:124
  [Error: gtkcsscustomgadget.c was not found in source tree]
#11 0x00007f21aee90d51 in gtk_css_gadget_get_preferred_size (gadget=0x556dd77a6ba0, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=-1, minimum=0x7fffa1ce12d8, natural=0x7fffa1ce12dc, minimum_baseline=0x7fffa1ce12e0, natural_baseline=0x7fffa1ce12e4) at ././gtk/gtkcssgadget.c:675
  [Error: gtkcssgadget.c was not found in source tree]
#12 0x00007f21aef269d3 in gtk_image_get_preferred_height_and_baseline_for_width (widget=<optimized out>, width=<optimized out>, minimum=<optimized out>, natural=<optimized out>, minimum_baseline=<optimized out>, natural_baseline=<optimized out>) at ././gtk/gtkimage.c:1914
  [Error: gtkimage.c was not found in source tree]
#13 0x00007f21aefedf4b in gtk_widget_query_size_for_orientation (widget=widget@entry=0x556dd78e1870, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffa1ce14c8, natural_size=natural_size@entry=0x7fffa1ce14cc, minimum_baseline=minimum_baseline@entry=0x7fffa1ce14d0, natural_baseline=0x7fffa1ce14d4) at ././gtk/gtksizerequest.c:215
  [Error: gtksizerequest.c was not found in source tree]
#14 0x00007f21aefee1df in gtk_widget_compute_size_for_orientation (widget=widget@entry=0x556dd78e1870, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffa1ce14c8, natural=natural@entry=0x7fffa1ce14cc, minimum_baseline=minimum_baseline@entry=0x7fffa1ce14d0, natural_baseline=0x7fffa1ce14d4) at ././gtk/gtksizerequest.c:399
  [Error: gtksizerequest.c was not found in source tree]
#15 0x00007f21aefee4a6 in gtk_widget_get_preferred_height_and_baseline_for_width (widget=0x556dd78e1870, width=-1, minimum_height=0x7fffa1ce14c8, natural_height=0x7fffa1ce14cc, minimum_baseline=0x7fffa1ce14d0, natural_baseline=0x7fffa1ce14d4) at ././gtk/gtksizerequest.c:642
  [Error: gtksizerequest.c was not found in source tree]
#16 0x00007f21aefedf4b in gtk_widget_query_size_for_orientation (widget=widget@entry=0x556dd78e16f0, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffa1ce16c8, natural_size=natural_size@entry=0x7fffa1ce16cc, minimum_baseline=minimum_baseline@entry=0x7fffa1ce16d0, natural_baseline=0x7fffa1ce16d4) at ././gtk/gtksizerequest.c:215
  [Error: gtksizerequest.c was not found in source tree]
#17 0x00007f21aefee1df in gtk_widget_compute_size_for_orientation (widget=widget@entry=0x556dd78e16f0, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffa1ce16c8, natural=natural@entry=0x7fffa1ce16cc, minimum_baseline=minimum_baseline@entry=0x7fffa1ce16d0, natural_baseline=0x7fffa1ce16d4) at ././gtk/gtksizerequest.c:399
  [Error: gtksizerequest.c was not found in source tree]
#18 0x00007f21aefee4a6 in gtk_widget_get_preferred_height_and_baseline_for_width (widget=0x556dd78e16f0, width=-1, minimum_height=0x7fffa1ce16c8, natural_height=0x7fffa1ce16cc, minimum_baseline=0x7fffa1ce16d0, natural_baseline=0x7fffa1ce16d4) at ././gtk/gtksizerequest.c:642
  [Error: gtksizerequest.c was not found in source tree]
#19 0x00007f21aee3bcc1 in gtk_box_get_size (natural_baseline=0x7fffa1ce1874, minimum_baseline=0x7fffa1ce1870, natural_size=0x7fffa1ce186c, minimum_size=0x7fffa1ce1868, orientation=GTK_ORIENTATION_VERTICAL, widget=<optimized out>) at ././gtk/gtkbox.c:1605
  [Error: gtkbox.c was not found in source tree]
#20 gtk_box_get_content_size (gadget=<optimized out>, orientation=GTK_ORIENTATION_VERTICAL, for_size=<optimized out>, minimum=0x7fffa1ce1868, natural=0x7fffa1ce186c, minimum_baseline=0x7fffa1ce1870, natural_baseline=0x7fffa1ce1874, unused=0x0) at ././gtk/gtkbox.c:2061
  [Error: gtkbox.c was not found in source tree]
#21 0x00007f21aee8cb03 in gtk_css_custom_gadget_get_preferred_size (gadget=<optimized out>, orientation=<optimized out>, for_size=<optimized out>, minimum=<optimized out>, natural=<optimized out>, minimum_baseline=<optimized out>, natural_baseline=0x7fffa1ce1874) at ././gtk/gtkcsscustomgadget.c:124
  [Error: gtkcsscustomgadget.c was not found in source tree]
#22 0x00007f21aee90d51 in gtk_css_gadget_get_preferred_size (gadget=0x556dd77a6920, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=-1, minimum=0x7fffa1ce1868, natural=0x7fffa1ce186c, minimum_baseline=0x7fffa1ce1870, natural_baseline=0x7fffa1ce1874) at ././gtk/gtkcssgadget.c:675
  [Error: gtkcssgadget.c was not found in source tree]
#23 0x00007f21aee3c683 in gtk_box_get_preferred_height_and_baseline_for_width (widget=<optimized out>, width=<optimized out>, minimum=<optimized out>, natural=<optimized out>, minimum_baseline=<optimized out>, natural_baseline=<optimized out>) at ././gtk/gtkbox.c:2039
  [Error: gtkbox.c was not found in source tree]
#24 0x00007f21aefedf4b in gtk_widget_query_size_for_orientation (widget=widget@entry=0x556dd78c4f60, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffa1ce1a38, natural_size=natural_size@entry=0x7fffa1ce1a3c, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:215
  [Error: gtksizerequest.c was not found in source tree]
#25 0x00007f21aefee1df in gtk_widget_compute_size_for_orientation (widget=widget@entry=0x556dd78c4f60, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffa1ce1a38, natural=natural@entry=0x7fffa1ce1a3c, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:399
  [Error: gtksizerequest.c was not found in source tree]
#26 0x00007f21aefed71a in gtk_widget_get_preferred_height (widget=0x556dd78c4f60, minimum_height=0x7fffa1ce1a38, natural_height=0x7fffa1ce1a3c) at ././gtk/gtksizerequest.c:527
  [Error: gtksizerequest.c was not found in source tree]
#27 0x00007f21aefee004 in gtk_widget_query_size_for_orientation (widget=widget@entry=0x556dd77a91e0, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffa1ce1bc0, natural_size=natural_size@entry=0x7fffa1ce1bc4, minimum_baseline=minimum_baseline@entry=0x7fffa1ce1c9c, natural_baseline=0x0) at ././gtk/gtksizerequest.c:219
  [Error: gtksizerequest.c was not found in source tree]
#28 0x00007f21aefee1df in gtk_widget_compute_size_for_orientation (widget=widget@entry=0x556dd77a91e0, orientation=orientation@entry=GTK_ORIENTATION_VERTICAL, for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffa1ce1bc0, natural=natural@entry=0x7fffa1ce1bc4, minimum_baseline=minimum_baseline@entry=0x7fffa1ce1c9c, natural_baseline=0x0) at ././gtk/gtksizerequest.c:399
  [Error: gtksizerequest.c was not found in source tree]
#29 0x00007f21aefee4a6 in gtk_widget_get_preferred_height_and_baseline_for_width (widget=0x556dd77a91e0, width=-1, minimum_height=0x7fffa1ce1bc0, natural_height=0x7fffa1ce1bc4, minimum_baseline=0x7fffa1ce1c9c, natural_baseline=0x0) at ././gtk/gtksizerequest.c:642
  [Error: gtksizerequest.c was not found in source tree]
#30 0x00007f21aefee567 in _gtk_widget_get_preferred_size_and_baseline (widget=widget@entry=0x556dd77a91e0, minimum_size=minimum_size@entry=0x7fffa1ce1ca0, natural_size=natural_size@entry=0x0, minimum_baseline=minimum_baseline@entry=0x7fffa1ce1c9c, natural_baseline=natural_baseline@entry=0x0) at ././gtk/gtksizerequest.c:703
  [Error: gtksizerequest.c was not found in source tree]
#31 0x00007f21aee35144 in gtk_button_box_child_requisition (widget=widget@entry=0x556dd779f1f0, nvis_children=nvis_children@entry=0x7fffa1ce1d3c, nvis_secondaries=nvis_secondaries@entry=0x0, widths=widths@entry=0x7fffa1ce1d40, heights=heights@entry=0x7fffa1ce1d48, baselines=baselines@entry=0x7fffa1ce1d50, baseline=0x0, baseline_height=0x0) at ././gtk/gtkbbox.c:654
  [Error: gtkbbox.c was not found in source tree]
#32 0x00007f21aee35ee7 in gtk_button_box_size_request (baseline=<optimized out>, requisition=<synthetic pointer>, widget=0x556dd779f1f0) at ././gtk/gtkbbox.c:801
  [Error: gtkbbox.c was not found in source tree]
#33 gtk_button_box_measure (gadget=<optimized out>, orientation=GTK_ORIENTATION_HORIZONTAL, for_size=<optimized out>, minimum=0x7fffa1ce1ef8, natural=0x7fffa1ce1efc, minimum_baseline=0x0, natural_baseline=0x0, unused=0x0) at ././gtk/gtkbbox.c:907
  [Error: gtkbbox.c was not found in source tree]
#34 0x00007f21aee8cb03 in gtk_css_custom_gadget_get_preferred_size (gadget=<optimized out>, orientation=<optimized out>, for_size=<optimized out>, minimum=<optimized out>, natural=<optimized out>, minimum_baseline=<optimized out>, natural_baseline=0x0) at ././gtk/gtkcsscustomgadget.c:124
  [Error: gtkcsscustomgadget.c was not found in source tree]
#35 0x00007f21aee90d51 in gtk_css_gadget_get_preferred_size (gadget=0x556dd76e1b10, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum=0x7fffa1ce1ef8, natural=0x7fffa1ce1efc, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtkcssgadget.c:675
  [Error: gtkcssgadget.c was not found in source tree]
#36 0x00007f21aee348dc in gtk_button_box_get_preferred_width (widget=<optimized out>, minimum=<optimized out>, natural=<optimized out>) at ././gtk/gtkbbox.c:933
  [Error: gtkbbox.c was not found in source tree]
#37 0x00007f21aefedf94 in gtk_widget_query_size_for_orientation (widget=widget@entry=0x556dd779f1f0, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffa1ce20d8, natural_size=natural_size@entry=0x7fffa1ce20dc, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:181
  [Error: gtksizerequest.c was not found in source tree]
#38 0x00007f21aefee1df in gtk_widget_compute_size_for_orientation (widget=widget@entry=0x556dd779f1f0, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffa1ce20d8, natural=natural@entry=0x7fffa1ce20dc, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:399
  [Error: gtksizerequest.c was not found in source tree]
#39 0x00007f21aefee297 in gtk_widget_get_preferred_width (widget=0x556dd779f1f0, minimum_width=0x7fffa1ce20d8, natural_width=0x7fffa1ce20dc) at ././gtk/gtksizerequest.c:492
  [Error: gtksizerequest.c was not found in source tree]
#40 0x00007f21aee3bbff in gtk_box_get_size (natural_baseline=0x0, minimum_baseline=0x0, natural_size=0x7fffa1ce227c, minimum_size=0x7fffa1ce2278, orientation=GTK_ORIENTATION_HORIZONTAL, widget=<optimized out>) at ././gtk/gtkbox.c:1602
  [Error: gtkbox.c was not found in source tree]
#41 gtk_box_get_content_size (gadget=<optimized out>, orientation=GTK_ORIENTATION_HORIZONTAL, for_size=<optimized out>, minimum=0x7fffa1ce2278, natural=0x7fffa1ce227c, minimum_baseline=0x0, natural_baseline=0x0, unused=0x0) at ././gtk/gtkbox.c:2061
  [Error: gtkbox.c was not found in source tree]
#42 0x00007f21aee8cb03 in gtk_css_custom_gadget_get_preferred_size (gadget=<optimized out>, orientation=<optimized out>, for_size=<optimized out>, minimum=<optimized out>, natural=<optimized out>, minimum_baseline=<optimized out>, natural_baseline=0x0) at ././gtk/gtkcsscustomgadget.c:124
  [Error: gtkcsscustomgadget.c was not found in source tree]
#43 0x00007f21aee90d51 in gtk_css_gadget_get_preferred_size (gadget=0x556dd76eb6e0, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum=0x7fffa1ce2278, natural=0x7fffa1ce227c, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtkcssgadget.c:675
  [Error: gtkcssgadget.c was not found in source tree]
#44 0x00007f21aee3c713 in gtk_box_get_preferred_width (widget=<optimized out>, minimum=<optimized out>, natural=<optimized out>) at ././gtk/gtkbox.c:1716
  [Error: gtkbox.c was not found in source tree]
#45 0x00007f21aefedf94 in gtk_widget_query_size_for_orientation (widget=widget@entry=0x556dd7796ca0, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffa1ce2458, natural_size=natural_size@entry=0x7fffa1ce245c, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:181
  [Error: gtksizerequest.c was not found in source tree]
#46 0x00007f21aefee1df in gtk_widget_compute_size_for_orientation (widget=widget@entry=0x556dd7796ca0, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffa1ce2458, natural=natural@entry=0x7fffa1ce245c, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:399
  [Error: gtksizerequest.c was not found in source tree]
#47 0x00007f21aefee297 in gtk_widget_get_preferred_width (widget=0x556dd7796ca0, minimum_width=0x7fffa1ce2458, natural_width=0x7fffa1ce245c) at ././gtk/gtksizerequest.c:492
  [Error: gtksizerequest.c was not found in source tree]
#48 0x00007f21aee3bbff in gtk_box_get_size (natural_baseline=0x0, minimum_baseline=0x0, natural_size=0x7fffa1ce25fc, minimum_size=0x7fffa1ce25f8, orientation=GTK_ORIENTATION_HORIZONTAL, widget=<optimized out>) at ././gtk/gtkbox.c:1602
  [Error: gtkbox.c was not found in source tree]
#49 gtk_box_get_content_size (gadget=<optimized out>, orientation=GTK_ORIENTATION_HORIZONTAL, for_size=<optimized out>, minimum=0x7fffa1ce25f8, natural=0x7fffa1ce25fc, minimum_baseline=0x0, natural_baseline=0x0, unused=0x0) at ././gtk/gtkbox.c:2061
  [Error: gtkbox.c was not found in source tree]
#50 0x00007f21aee8cb03 in gtk_css_custom_gadget_get_preferred_size (gadget=<optimized out>, orientation=<optimized out>, for_size=<optimized out>, minimum=<optimized out>, natural=<optimized out>, minimum_baseline=<optimized out>, natural_baseline=0x0) at ././gtk/gtkcsscustomgadget.c:124
  [Error: gtkcsscustomgadget.c was not found in source tree]
#51 0x00007f21aee90d51 in gtk_css_gadget_get_preferred_size (gadget=0x556dd76eb560, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum=0x7fffa1ce25f8, natural=0x7fffa1ce25fc, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtkcssgadget.c:675
  [Error: gtkcssgadget.c was not found in source tree]
#52 0x00007f21aee3c713 in gtk_box_get_preferred_width (widget=<optimized out>, minimum=<optimized out>, natural=<optimized out>) at ././gtk/gtkbox.c:1716
  [Error: gtkbox.c was not found in source tree]
#53 0x00007f21aefedf94 in gtk_widget_query_size_for_orientation (widget=widget@entry=0x556dd77969e0, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffa1ce2778, natural_size=natural_size@entry=0x7fffa1ce277c, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:181
  [Error: gtksizerequest.c was not found in source tree]
#54 0x00007f21aefee1df in gtk_widget_compute_size_for_orientation (widget=widget@entry=0x556dd77969e0, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffa1ce2778, natural=natural@entry=0x7fffa1ce277c, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:399
  [Error: gtksizerequest.c was not found in source tree]
#55 0x00007f21aefee297 in gtk_widget_get_preferred_width (widget=0x556dd77969e0, minimum_width=0x7fffa1ce2778, natural_width=0x7fffa1ce277c) at ././gtk/gtksizerequest.c:492
  [Error: gtksizerequest.c was not found in source tree]
#56 0x00007f21af0b2a2a in gtk_window_get_preferred_width (widget=0x556dd779a460, minimum_size=0x7fffa1ce2838, natural_size=0x7fffa1ce283c) at ././gtk/gtkwindow.c:8734
  [Error: gtkwindow.c was not found in source tree]
#57 0x00007f21aefedf94 in gtk_widget_query_size_for_orientation (widget=widget@entry=0x556dd779a460, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum_size=minimum_size@entry=0x7fffa1ce29a0, natural_size=natural_size@entry=0x7fffa1ce29a4, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:181
  [Error: gtksizerequest.c was not found in source tree]
#58 0x00007f21aefee1df in gtk_widget_compute_size_for_orientation (widget=widget@entry=0x556dd779a460, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, for_size=for_size@entry=-1, minimum=minimum@entry=0x7fffa1ce29a0, natural=natural@entry=0x7fffa1ce29a4, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=0x0) at ././gtk/gtksizerequest.c:399
  [Error: gtksizerequest.c was not found in source tree]
#59 0x00007f21aefee297 in gtk_widget_get_preferred_width (widget=0x556dd779a460, minimum_width=0x7fffa1ce29a0, natural_width=0x7fffa1ce29a4) at ././gtk/gtksizerequest.c:492
  [Error: gtksizerequest.c was not found in source tree]
#60 0x00007f21aefee5d0 in _gtk_widget_get_preferred_size_and_baseline (widget=widget@entry=0x556dd779a460, minimum_size=minimum_size@entry=0x7fffa1ce2a40, natural_size=natural_size@entry=0x0, minimum_baseline=minimum_baseline@entry=0x0, natural_baseline=natural_baseline@entry=0x0) at ././gtk/gtksizerequest.c:685
  [Error: gtksizerequest.c was not found in source tree]
#61 0x00007f21aefee62a in gtk_widget_get_preferred_size (widget=widget@entry=0x556dd779a460, minimum_size=minimum_size@entry=0x7fffa1ce2a40, natural_size=natural_size@entry=0x0) at ././gtk/gtksizerequest.c:750
  [Error: gtksizerequest.c was not found in source tree]
#62 0x00007f21af0b4412 in gtk_window_compute_hints (new_flags=<synthetic pointer>, new_geometry=0x7fffa1ce2a50, window=0x556dd779a460) at ././gtk/gtkwindow.c:10173
  [Error: gtkwindow.c was not found in source tree]
#63 gtk_window_compute_configure_request (window=window@entry=0x556dd779a460, request=request@entry=0x7fffa1ce2b20, geometry=geometry@entry=0x0, flags=flags@entry=0x0) at ././gtk/gtkwindow.c:9489
  [Error: gtkwindow.c was not found in source tree]
#64 0x00007f21af0b8ec1 in gtk_window_realize (widget=0x556dd779a460) at ././gtk/gtkwindow.c:7368
  [Error: gtkwindow.c was not found in source tree]
#65 0x0000556dd6ce2831 in gst_dialog_realize (widget=0x556dd779a460) at gst-dialog.c:358
  353: static void
  354: gst_dialog_realize (GtkWidget *widget)
  355: {
  356: 	GstDialogPrivate *priv;
  357: 
  358: 	(* GTK_WIDGET_CLASS (gst_dialog_parent_class)->realize) (widget);
  359: 
  360: 	priv = GST_DIALOG_GET_PRIVATE (widget);
  361: 
  362: 	if (priv->frozen > 0)
  363: 		gst_dialog_set_cursor (GST_DIALOG (widget), GDK_WATCH);
#66 0x00007f21addcfc25 in g_closure_invoke () from /tmp/apport_sandbox_CZ00Kb/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#67 0x00007f21adde160c in ?? () from /tmp/apport_sandbox_CZ00Kb/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#68 0x00007f21addea88c in g_signal_emit_valist () from /tmp/apport_sandbox_CZ00Kb/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#69 0x00007f21addeac6f in g_signal_emit () from /tmp/apport_sandbox_CZ00Kb/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#70 0x00007f21af0a9024 in gtk_widget_realize (widget=widget@entry=0x556dd779a460) at ././gtk/gtkwidget.c:5461
  [Error: gtkwidget.c was not found in source tree]
#71 0x00007f21af0b6f6b in gtk_window_show (widget=0x556dd779a460) at ././gtk/gtkwindow.c:6288
  [Error: gtkwindow.c was not found in source tree]
#72 0x00007f21addcfc25 in g_closure_invoke () from /tmp/apport_sandbox_CZ00Kb/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#73 0x00007f21adde160c in ?? () from /tmp/apport_sandbox_CZ00Kb/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#74 0x00007f21addea88c in g_signal_emit_valist () from /tmp/apport_sandbox_CZ00Kb/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#75 0x00007f21addeac6f in g_signal_emit () from /tmp/apport_sandbox_CZ00Kb/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#76 0x00007f21af0a2fa2 in gtk_widget_show (widget=0x556dd779a460) at ././gtk/gtkwidget.c:4794
  [Error: gtkwidget.c was not found in source tree]
#77 0x0000556dd6cd7d7f in main (argc=<optimized out>, argv=<optimized out>) at main.c:202
  197:   if (interface)
  198:     init_standalone_dialog (tool, SEARCH_DEV, interface);
  199:   else if (type)
  200:     init_standalone_dialog (tool, SEARCH_TYPE, type);
  201:   else
  202:     gtk_widget_show (GTK_WIDGET (tool->main_dialog));
  203: 
  204:   gtk_main ();
  205:   return 0;
  206: }