#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  0x00007f51fd2413ea in __GI_abort () at abort.c:89
  [Error: abort.c was not found in source tree]
#2  0x00007f51fb2051b5 in g_assertion_message () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f51fb20524a in g_assertion_message_expr () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f51fb220ff1 in g_variant_type_info_check () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f51fb2210bb in g_variant_type_info_get_type_string () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f51fb213d29 in g_variant_is_of_type () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f51fb218338 in valid_format_string () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f51fb218d8e in g_variant_get () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f519275f9a6 in e_editor_dom_restore_images (editor_page=editor_page@entry=0x5610aa5f30e0, inline_images_to_restore=inline_images_to_restore@entry=0x7f51d4003e70) at e-editor-dom-functions.c:8189
  [Error: e-editor-dom-functions.c was not found in source tree]
#10 0x00007f519278a6db in handle_method_call (connection=<optimized out>, sender=<optimized out>, object_path=<optimized out>, interface_name=<optimized out>, method_name=<optimized out>, parameters=0x5610aa429190, invocation=0x7f51dc00d180, user_data=0x5610a9cd35a0) at e-editor-web-extension.c:1804
  [Error: e-editor-web-extension.c was not found in source tree]
#11 0x00007f51fb7b4e3c in call_in_idle_cb () from /tmp/apport_sandbox_dXbhby/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#12 0x00007f51fb1de66a in g_main_context_dispatch () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f51fb1dea20 in g_main_context_iterate.isra () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f51fb1ded42 in g_main_loop_run () from /tmp/apport_sandbox_dXbhby/lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f51fadecd50 in WTF::RunLoop::run () at ./Source/WTF/wtf/glib/RunLoopGLib.cpp:94
  89:     ASSERT(!runLoop.m_mainLoops.isEmpty());
  90: 
  91:     GMainLoop* innermostLoop = runLoop.m_mainLoops[0].get();
  92:     if (!g_main_loop_is_running(innermostLoop)) {
  93:         g_main_context_push_thread_default(mainContext);
  94:         g_main_loop_run(innermostLoop);
  95:         g_main_context_pop_thread_default(mainContext);
  96:         return;
  97:     }
  98: 
  99:     // Create and run a nested loop if the innermost one was already running.
#16 0x00007f51fdcf28a9 in WebKit::ChildProcessMain<WebKit::WebProcess, WebKit::WebProcessMain> (argc=<optimized out>, argv=0x7ffddfd7e6f8) at ./Source/WebKit2/Shared/unix/ChildProcessMain.h:61
  56: 
  57:     if (!childMain.parseCommandLine(argc, argv))
  58:         return EXIT_FAILURE;
  59: 
  60:     ChildProcessType::singleton().initialize(childMain.initializationParameters());
  61:     RunLoop::run();
  62:     childMain.platformFinalize();
  63: 
  64:     return EXIT_SUCCESS;
  65: }
  66: 
#17 0x00007f51fd22a3f1 in __libc_start_main (main=0x5610a9058830 <main(int, char**)>, argc=2, argv=0x7ffddfd7e6f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffddfd7e6e8) at ../csu/libc-start.c:291
  [Error: libc-start.c was not found in source tree]
#18 0x00005610a905888a in _start ()