Program received signal SIGSEGV, Segmentation fault.
g_type_check_instance_is_fundamentally_a (type_instance=type_instance@entry=0xba6590, fundamental_type=fundamental_type@entry=80) at gtype.c:4028
4028	  node = lookup_type_node_I (type_instance->g_class->g_type);
(gdb) bt
#0  g_type_check_instance_is_fundamentally_a (type_instance=type_instance@entry=0xba6590, fundamental_type=fundamental_type@entry=80) at gtype.c:4028
#1  0x00007ffff7ba3615 in g_object_steal_qdata (object=0xba6590, quark=611) at gobject.c:3420
#2  0x00007ffff75f7185 in cancel_toggle_idle (gobj=0xba6590, direction=direction@entry=TOGGLE_UP) at gi/object.cpp:836
#3  0x00007ffff75f7482 in object_instance_finalize (fop=<optimized out>, obj=0x7fffe8c61af0) at gi/object.cpp:1424
#4  0x00007ffff3dbadbf in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#5  0x00007ffff3dbba08 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#6  0x00007ffff3dbbfb0 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#7  0x00007ffff3dbeec9 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#8  0x00007ffff3dc01d3 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#9  0x00007ffff3dc05fb in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#10 0x00007ffff75e7b4e in gjs_gc_if_needed (context=0x6373f0) at gjs/jsapi-util.cpp:1199
#11 0x00007ffff75e2134 in trigger_gc_if_needed (user_data=0x619000) at gjs/context.cpp:539
#12 0x00007ffff789bbdd in g_main_dispatch (context=0x6ca930) at gmain.c:3122
#13 g_main_context_dispatch (context=context@entry=0x6ca930) at gmain.c:3737
#14 0x00007ffff789bf78 in g_main_context_iterate (context=context@entry=0x6ca930, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3808
#15 0x00007ffff789c01c in g_main_context_iteration (context=0x6ca930, context@entry=0x0, may_block=may_block@entry=1) at gmain.c:3869
#16 0x00007ffff443518c in g_application_run (application=0x6b9130, argc=<optimized out>, argv=0x703690) at gapplication.c:2308
#17 0x00007ffff65dbdc0 in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
#18 0x00007ffff65db828 in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
#19 0x00007ffff75f421a in gjs_invoke_c_function (context=<optimized out>, function=0x6fac60, obj=<optimized out>, js_argc=1, js_argv=0x6776c0, js_rval=0x7fffffffcc00, 
    r_value=0x0) at gi/function.cpp:997
#20 0x00007ffff75f56ff in function_call (context=0x6373f0, js_argc=1, vp=0x6776b0) at gi/function.cpp:1320
#21 0x00007ffff3c9f982 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#22 0x00007ffff3ca37a9 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#23 0x00007ffff3cad118 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#24 0x00007ffff3cad331 in ?? () from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#25 0x00007ffff3d5596a in JS::Evaluate(JSContext*, JS::Handle<JSObject*>, JS::CompileOptions, unsigned short const*, unsigned long, JS::Value*) ()
   from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#26 0x00007ffff3d55abe in JS::Evaluate(JSContext*, JS::Handle<JSObject*>, JS::CompileOptions, char const*, unsigned long, JS::Value*) ()
   from /usr/lib/x86_64-linux-gnu/libmozjs-24.so.0
#27 0x00007ffff75e7e61 in gjs_eval_with_scope (context=0x6373f0, object=0x7fffeac36160, script=0x612a00 "const Main = imports.main; Main.start();", script_len=40, 
    filename=0x401394 "<command line>", retval_p=0x7fffffffd790) at gjs/jsapi-util.cpp:1325
#28 0x00007ffff75e2313 in gjs_context_eval (js_context=0x619000, script=0x612a00 "const Main = imports.main; Main.start();", script_len=40, 
    filename=0x401394 "<command line>", exit_status_p=0x7fffffffd804, error=0x7fffffffd808) at gjs/context.cpp:645
#29 0x000000000040110d in main (argc=1, argv=0x7fffffffd918) at gjs/console.cpp:140

