This is from: lldb -- guile -e main drawing-widget.scm

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x600003466480)
    frame #0: 0x0000600003466480
->  0x600003466480: .long  0x02f6c000                ; unknown opcode
    0x600003466484: udf    #0x6000
    0x600003466488: .long  0x4c8098b0                ; unknown opcode
    0x60000346648c: udf    #0x1
Target 0: (guile) stopped.

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x60000081a100)
  * frame #0: 0x000060000081a100
    frame #1: 0x00000001050b3f58 libgtk-4.1.dylib`gtk_widget_do_snapshot + 568
    frame #2: 0x00000001050b4780 libgtk-4.1.dylib`gtk_widget_snapshot_child + 132
    frame #3: 0x00000001050b6d90 libgtk-4.1.dylib`gtk_widget_real_snapshot + 52
    frame #4: 0x00000001050b3ef4 libgtk-4.1.dylib`gtk_widget_do_snapshot + 468
    frame #5: 0x00000001050b3cfc libgtk-4.1.dylib`gtk_widget_snapshot + 44
    frame #6: 0x00000001050b40c4 libgtk-4.1.dylib`gtk_widget_render + 168
    frame #7: 0x00000001050c1ce0 libgtk-4.1.dylib`surface_render + 28

    frame #1: 0x00000001033abf58 libgtk-4.1.dylib`gtk_widget_do_snapshot [inlined] gtk_widget_create_render_node(widget=0x0000000139e1f110, snapshot=0x000000013a093200) at gtkwidget.c:11862:7 [opt]
    frame #2: 0x00000001033abf48 libgtk-4.1.dylib`gtk_widget_do_snapshot(widget=0x0000000139e1f110, snapshot=0x000000013a093200) at gtkwidget.c:11897:17 [opt]
    frame #3: 0x00000001033ac780 libgtk-4.1.dylib`gtk_widget_snapshot_child(widget=0x0000000139e1df70, child=0x0000000139e1f110, snapshot=0x000000013a093200) at gtkwidget.c:12318:3 [opt]
    frame #4: 0x00000001033aed90 libgtk-4.1.dylib`gtk_widget_real_snapshot(widget=0x0000000139e1df70, snapshot=0x000000013a093200) at gtkwidget.c:756:5 [opt]
    frame #5: 0x00000001033abef4 libgtk-4.1.dylib`gtk_widget_do_snapshot [inlined] gtk_widget_create_render_node(widget=0x0000000139e1df70, snapshot=0x000000013a093200) at gtkwidget.c:11857:7 [opt]
    frame #6: 0x00000001033abde4 libgtk-4.1.dylib`gtk_widget_do_snapshot(widget=0x0000000139e1df70, snapshot=0x000000013a093200) at gtkwidget.c:11897:17 [opt]
    frame #7: 0x00000001033abcfc libgtk-4.1.dylib`gtk_widget_snapshot(widget=<unavailable>, snapshot=0x000000013a093200) at gtkwidget.c:11919:3 [opt]
    frame #8: 0x00000001033ac0c4 libgtk-4.1.dylib`gtk_widget_render(widget=0x0000000139e1df70, surface=0x0000000139e1f280, region=0x0000600003a78820) at gtkwidget.c:11951:3 [opt]
    frame #9: 0x00000001033b9ce0 libgtk-4.1.dylib`surface_render(surface=<unavailable>, region=<unavailable>, widget=<unavailable>) at gtkwindow.c:4804:3 [opt]

And this one from: lldb -- guile -e main simple-paintable.scm

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x6000032e7340)
    frame #0: 0x00006000032e7340
->  0x6000032e7340: .long  0x029e0180                ; unknown opcode
    0x6000032e7344: udf    #0x6000
    0x6000032e7348: .long  0x41809eb0                ; unknown opcode
    0x6000032e734c: udf    #0x1
Target 0: (guile) stopped.

(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x6000032e7340)
  * frame #0: 0x00006000032e7340
    frame #1: 0x0000000103c62ed8 libgtk-4.1.dylib`gtk_image_set_from_paintable + 144

    frame #1: 0x0000000102cfaed8 libgtk-4.1.dylib`gtk_image_set_from_paintable(image=0x000000012e72c3c0, paintable=0x00006000031d33a0) at gtkimage.c:843:27 [opt]