#0  0x00007ffff57173a5 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007ffff571ab0b in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007ffff5d054ad in g_assertion_message (domain=<optimized out>, file=<optimized out>, line=<optimized out>, func=0x7ffff5038540 "gjs_object_instance_constructor", 
    message=0x1c82020 "assertion failed: (unthreadsafe_template_for_constructor.info == NULL || strcmp(g_base_info_get_name( (GIBaseInfo*) priv->info), g_base_info_get_name( (GIBaseInfo*) unthreadsafe_template_for_construct"...) at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1425
        lstr = "671\000\377\177\000\000\000\305\377\377\377\177\000\000\001\000\000\000\000\000\000\000\300q\003\365\377\177\000"
        s = 0x593fdd0 "\320\037\305\001"
#3  0x00007ffff5d059d2 in g_assertion_message_expr (domain=0x0, file=0x7ffff5037e1e "gi/object.c", line=671, func=0x7ffff5038540 "gjs_object_instance_constructor", expr=<optimized out>)
    at /build/buildd/glib2.0-2.30.0/./glib/gtestutils.c:1436
        s = <optimized out>
#4  0x00007ffff502f056 in ?? () from /usr/lib/libgjs.so.0
No symbol table info available.
#5  0x00007ffff4b6553b in ?? () from /usr/lib/libmozjs185.so.1.0
No symbol table info available.
#6  0x00007ffff4b54bcc in ?? () from /usr/lib/libmozjs185.so.1.0
No symbol table info available.
#7  0x00007ffff4b63c25 in ?? () from /usr/lib/libmozjs185.so.1.0
No symbol table info available.
#8  0x00007ffff4b65ae2 in ?? () from /usr/lib/libmozjs185.so.1.0
No symbol table info available.
#9  0x00007ffff4b2ffab in ?? () from /usr/lib/libmozjs185.so.1.0
No symbol table info available.
#10 0x00007ffff4b65baa in ?? () from /usr/lib/libmozjs185.so.1.0
No symbol table info available.
#11 0x00007ffff4b65fcb in ?? () from /usr/lib/libmozjs185.so.1.0
No symbol table info available.
#12 0x00007ffff4ad59a1 in JS_CallFunctionValue () from /usr/lib/libmozjs185.so.1.0
No symbol table info available.
#13 0x00007ffff501f8ac in gjs_call_function_value () from /usr/lib/libgjs.so.0
No symbol table info available.
#14 0x00007ffff502a29d in gjs_closure_invoke () from /usr/lib/libgjs.so.0
No symbol table info available.
#15 0x00007ffff5033549 in ?? () from /usr/lib/libgjs.so.0
No symbol table info available.
#16 0x00007ffff5fa20a4 in g_closure_invoke (closure=0x7fffdc023a50, return_value=0x0, n_param_values=5, param_values=0x3701510, invocation_hint=<optimized out>)
    at /build/buildd/glib2.0-2.30.0/./gobject/gclosure.c:774
        marshal = 0x7ffff50332f0
        marshal_data = <optimized out>
        in_marshal = <optimized out>
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#17 0x00007ffff5fb402a in signal_emit_unlocked_R (node=<optimized out>, detail=1966, instance=0xa75380, emission_return=0x0, instance_and_params=0x3701510)
    at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3272
        tmp = <optimized out>
        handler = 0x7fffdc022090
        accumulator = 0x0
        emission = {next = 0x0, instance = 0xa75380, ihint = {signal_id = 268, detail = 1966, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        class_closure = 0x0
        hlist = 0x7ffff5a8b1d0
        handler_list = 0x7fffdc022060
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, 
              v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 268
        max_sequential_handler_number = 63595
        return_value_altered = 0
#18 0x00007ffff5fbd6b1 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3003
        instance_and_params = 0x3701510
        signal_return_type = 4
        param_values = 0x3701528
        node = 0xaa6b10
        i = <optimized out>
        n_params = 4
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
#19 0x00007ffff5fbd852 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3060
        var_args = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fffffffd488, reg_save_area = 0x7fffffffd3c0}}
#20 0x00007ffff7b7b2e9 in shell_wm_key_handler (display=<optimized out>, screen=<optimized out>, window=0x0, event=<optimized out>, binding=<optimized out>, data=0xa75380) at shell-wm.c:339
        wm = 0xa75380
        backwards = 0
#21 0x00007ffff78c8368 in process_event (bindings=<optimized out>, n_bindings=<optimized out>, display=0xa58d20, screen=0x6181a0, window=0x0, event=0x7fffffffd880, on_window=0, keysym=<optimized out>)
    at core/keybindings.c:1348
        handler = 0x7ffff7b3d520
        i = <optimized out>
#22 0x00007ffff78c953c in meta_display_process_key_event (display=0xa58d20, window=0x0, event=0x7fffffffd880) at core/keybindings.c:1590
        keysym = 65289
        keep_grab = 1
        all_keys_grabbed = <optimized out>
        str = <optimized out>
        screen = 0x6181a0
        __PRETTY_FUNCTION__ = "meta_display_process_key_event"
#23 0x00007ffff78bde4b in event_callback (event=0x7fffffffd880, data=0xa58d20) at core/display.c:1760
        window = <optimized out>
        property_for_window = <optimized out>
        display = 0xa58d20
        frame_was_receiver = 0
        bypass_compositor = 0
        filter_out_event = 0
#24 0x00007ffff7908706 in filter_func (xevent=0x7fffffffd880, event=<optimized out>, data=<optimized out>) at ui/ui.c:235
No locals.
#25 0x00007ffff64e9251 in gdk_event_apply_filters (xevent=0x7fffffffd880, event=0x17e6590, window=0x0) at /build/buildd/gtk+3.0-3.2.0/./gdk/x11/gdkeventsource.c:83
        filter = 0xa888c0
        node = <optimized out>
        tmp_list = 0xa961a0
        result = <optimized out>
#26 0x00007ffff64e93ab in gdk_event_source_translate_event (xevent=0x7fffffffd880, event_source=0x66a8e0) at /build/buildd/gtk+3.0-3.2.0/./gdk/x11/gdkeventsource.c:197
        filter_window = 0x667000
        dpy = 0x64e4a0
        event = 0x17e6590
        result = GDK_FILTER_CONTINUE
        event_translator = <optimized out>
#27 _gdk_x11_display_queue_events (display=0x65b000) at /build/buildd/gtk+3.0-3.2.0/./gdk/x11/gdkeventsource.c:334
        event = 0x17e6590
        xevent = {type = 2, xany = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349}, xkey = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, root = 349, 
            subwindow = 65011753, time = 178297729, x = 1729, y = 239, x_root = 1729, y_root = 239, state = 8, keycode = 23, same_screen = 1}, xbutton = {type = 2, serial = 464046, send_event = 0, 
            display = 0x64e4a0, window = 349, root = 349, subwindow = 65011753, time = 178297729, x = 1729, y = 239, x_root = 1729, y_root = 239, state = 8, button = 23, same_screen = 1}, xmotion = {type = 2, 
            serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, root = 349, subwindow = 65011753, time = 178297729, x = 1729, y = 239, x_root = 1729, y_root = 239, state = 8, is_hint = 23 '\027', 
            same_screen = 1}, xcrossing = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, root = 349, subwindow = 65011753, time = 178297729, x = 1729, y = 239, x_root = 1729, 
            y_root = 239, mode = 8, detail = 23, same_screen = 1, focus = 0, state = 0}, xfocus = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, mode = 349, detail = 0}, 
          xexpose = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, x = 349, y = 0, width = 65011753, height = 0, count = 178297729}, xgraphicsexpose = {type = 2, serial = 464046, 
            send_event = 0, display = 0x64e4a0, drawable = 349, x = 349, y = 0, width = 65011753, height = 0, count = 178297729, major_code = 0, minor_code = 1729}, xnoexpose = {type = 2, serial = 464046, 
            send_event = 0, display = 0x64e4a0, drawable = 349, major_code = 349, minor_code = 0}, xvisibility = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, state = 349}, 
          xcreatewindow = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, parent = 349, window = 349, x = 65011753, y = 0, width = 178297729, height = 0, border_width = 1729, 
            override_redirect = 239}, xdestroywindow = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, event = 349, window = 349}, xunmap = {type = 2, serial = 464046, send_event = 0, 
            display = 0x64e4a0, event = 349, window = 349, from_configure = 65011753}, xmap = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, event = 349, window = 349, 
            override_redirect = 65011753}, xmaprequest = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, parent = 349, window = 349}, xreparent = {type = 2, serial = 464046, send_event = 0, 
            display = 0x64e4a0, event = 349, window = 349, parent = 65011753, x = 178297729, y = 0, override_redirect = 1729}, xconfigure = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, 
            event = 349, window = 349, x = 65011753, y = 0, width = 178297729, height = 0, border_width = 1729, above = 1026497185473, override_redirect = 8}, xgravity = {type = 2, serial = 464046, 
            send_event = 0, display = 0x64e4a0, event = 349, window = 349, x = 65011753, y = 0}, xresizerequest = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, width = 349, 
            height = 0}, xconfigurerequest = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, parent = 349, window = 349, x = 65011753, y = 0, width = 178297729, height = 0, border_width = 1729, 
            above = 1026497185473, detail = 8, value_mask = 1}, xcirculate = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, event = 349, window = 349, place = 65011753}, xcirculaterequest = {
            type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, parent = 349, window = 349, place = 65011753}, xproperty = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, 
            window = 349, atom = 349, time = 65011753, state = 178297729}, xselectionclear = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, selection = 349, time = 65011753}, 
          xselectionrequest = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, owner = 349, requestor = 349, selection = 65011753, target = 178297729, property = 1026497185473, 
            time = 1026497185473}, xselection = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, requestor = 349, selection = 349, target = 65011753, property = 178297729, time = 1026497185473}, 
          xcolormap = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, colormap = 349, new = 65011753, state = 0}, xclient = {type = 2, serial = 464046, send_event = 0, 
            display = 0x64e4a0, window = 349, message_type = 349, format = 65011753, data = {b = "\201\233\240\n\000\000\000\000\301\006\000\000\357\000\000\000\301\006\000", s = {-25727, 2720, 0, 0, 1729, 0, 
                239, 0, 1729, 0}, l = {178297729, 1026497185473, 1026497185473, 98784247816, 1}}}, xmapping = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, request = 349, 
            first_keycode = 0, count = 65011753}, xerror = {type = 2, display = 0x714ae, resourceid = 0, serial = 6612128, error_code = 93 ']', request_code = 1 '\001', minor_code = 0 '\000'}, xkeymap = {
            type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, window = 349, 
            key_vector = "]\001\000\000\000\000\000\000)\000\340\003\000\000\000\000\201\233\240\n\000\000\000\000\301\006\000\000\357\000\000"}, xgeneric = {type = 2, serial = 464046, send_event = 0, 
            display = 0x64e4a0, extension = 349, evtype = 0}, xcookie = {type = 2, serial = 464046, send_event = 0, display = 0x64e4a0, extension = 349, evtype = 0, cookie = 349, data = 0x3e00029}, pad = {
            140733193388034, 464046, 0, 6612128, 349, 349, 65011753, 178297729, 1026497185473, 1026497185473, 98784247816, 1, 0, 0, 0, 0, 0, 65280, 32683936, 1095216660480, 4294967296, 4294967296, 0, 0}}
        xdisplay = 0x64e4a0
        event_source = 0x66a8e0
        display_x11 = 0x65b000
#28 0x00007ffff64c1721 in gdk_display_get_event (display=0x65b000) at /build/buildd/gtk+3.0-3.2.0/./gdk/gdkdisplay.c:311
        __PRETTY_FUNCTION__ = "gdk_display_get_event"
#29 0x00007ffff64e90f2 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+3.0-3.2.0/./gdk/x11/gdkeventsource.c:356
        display = 0x65b000
        event = <optimized out>
#30 0x00007ffff5ce1a5d in g_main_dispatch (context=0x61e8c0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441
        dispatch = 0x7ffff64e90e0 <gdk_event_source_dispatch>
        was_in_call = 0
        user_data = 0x0
        callback = 0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0x66a8e0, next = 0x0}
        need_destroy = <optimized out>
        source = 0x66a8e0
        current = 0x1556120
        i = <optimized out>
#31 g_main_context_dispatch (context=0x61e8c0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011
No locals.
#32 0x00007ffff5ce2258 in g_main_context_iterate (context=0x61e8c0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3089
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = 14
        allocated_nfds = <optimized out>
        fds = <optimized out>
#33 0x00007ffff5ce2792 in g_main_loop_run (loop=0x621100) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#34 0x00007ffff78cad81 in meta_run () at core/main.c:555
        log_domains = {0x0, 0x7ffff7912dad "mutter", 0x7ffff7912dd8 "Gtk", 0x7ffff7912ddc "Gdk", 0x7ffff7912de0 "GLib", 0x7ffff7912de5 "Pango", 0x7ffff7912deb "GLib-GObject", 0x7ffff7912df8 "GThread"}
        i = <optimized out>
#35 0x0000000000402641 in main (argc=1, argv=0x7fffffffdcb8) at main.c:571
        ctx = <optimized out>
        error = 0x0
        session_type = <optimized out>
        ecode = <optimized out>
        sender = 0x94cf20
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