#0  0x00007f2c23812f79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 3021
        selftid = 3021
#1  0x00007f2c23816388 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x4fe8c1, sa_sigaction = 0x4fe8c1}, sa_mask = {__val = {4294967186, 139827565462432, 139827621033303, 140733193388037, 0, 72057594037927936, 139827550760232, 15705744, 139827565462432, 104, 139827621061909, 0, 0, 139827554662288, 4294967295, 0}}, sa_flags = 5888, sa_restorer = 0xefa690}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f2c2434e175 in g_assertion_message (domain=domain@entry=0x0, file=file@entry=0x4fe8c1 "nautilus-window.c", line=line@entry=2116, func=func@entry=0x4fefe0 <__FUNCTION__.57654> "nautilus_window_get_slots", message=message@entry=0xee4bb0 "assertion failed: (NAUTILUS_IS_WINDOW (window))") at /build/buildd/glib2.0-2.39.91/./glib/gtestutils.c:2291
        lstr = "2116\000\177\000\000\200\303NE\377\177\000\000\020\000\000\000\000\000\000\000j\325O\000\000\000\000"
        s = 0xefa690 ""
#3  0x00007f2c2434e20a in g_assertion_message_expr (domain=domain@entry=0x0, file=file@entry=0x4fe8c1 "nautilus-window.c", line=line@entry=2116, func=func@entry=0x4fefe0 <__FUNCTION__.57654> "nautilus_window_get_slots", expr=expr@entry=0x4fd56a "NAUTILUS_IS_WINDOW (window)") at /build/buildd/glib2.0-2.39.91/./glib/gtestutils.c:2306
        s = 0xee4bb0 "assertion failed: (NAUTILUS_IS_WINDOW (window))"
#4  0x000000000047b096 in nautilus_window_get_slots (window=window@entry=0xeda290) at nautilus-window.c:2116
        __FUNCTION__ = "nautilus_window_get_slots"
#5  0x000000000042b988 in get_window_slot_for_location (application=application@entry=0xd2f140, location=0xe3a0a0) at nautilus-application.c:575
        win = 0xeda290
        slot = 0x0
        l = 0xdb73a0
        sl = <optimized out>
#6  0x000000000042dd34 in open_windows (geometry=0x0, screen=0xd860e0, n_files=1, files=<optimized out>, force_new=0, application=0xd2f140) at nautilus-application.c:645
        slot = 0x0
        i = 0
#7  nautilus_application_open (app=<optimized out>, files=<optimized out>, n_files=1, hint=<optimized out>) at nautilus-application.c:710
        self = 0xd2f140
        __FUNCTION__ = "nautilus_application_open"
        force_new = 0
#8  0x00007f2c1eea5adc in ffi_call_unix64 () at ../src/x86/unix64.S:76
No locals.
#9  0x00007f2c1eea540c in ffi_call (cif=cif@entry=0x7fff454ec730, fn=0x42dc60 <nautilus_application_open>, rvalue=0x7fff454ec660, avalue=avalue@entry=0x7fff454ec5e0) at ../src/x86/ffi64.c:522
        classes = {X86_64_INTEGER_CLASS, X86_64_NO_CLASS, 665773333, 32556}
        stack = 0x7fff454ec3f0 "@\361\322"
        argp = 0x7fff454ec4a0 ""
        arg_types = <optimized out>
        gprcount = 5
        ssecount = <optimized out>
        ngpr = 1
        nsse = 0
        i = <optimized out>
        avn = <optimized out>
        ret_in_memory = <optimized out>
        reg_args = 0x7fff454ec3f0
#10 0x00007f2c245fa055 in g_cclosure_marshal_generic_va (closure=0xd2ae40, return_value=0x0, instance=0xd2f140, args_list=<optimized out>, marshal_data=0x42dc60 <nautilus_application_open>, n_params=3, param_types=0xd2ae90) at /build/buildd/glib2.0-2.39.91/./gobject/gclosure.c:1541
        rtype = 0x7f2c1eea5ed0 <ffi_type_void>
        rvalue = 0x7fff454ec660
        n_args = 5
        atypes = 0x7fff454ec620
        args = 0x7fff454ec5e0
        storage = 0x7fff454ec5b0
        i = <optimized out>
        cif = {abi = FFI_UNIX64, nargs = 5, arg_types = 0x7fff454ec620, rtype = 0x7f2c1eea5ed0 <ffi_type_void>, bytes = 0, flags = 0}
        cc = 0xd2ae40
        enum_tmpval = <optimized out>
        tmpval_used = 0
        args_copy = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fff454eca50, reg_save_area = 0x7fff454ec990}}
#11 0x00007f2c245f95e7 in _g_closure_invoke_va (closure=0xd2ae40, return_value=0x0, instance=0xd2f140, args=0x7fff454ec978, n_params=3, param_types=0xd2ae90) at /build/buildd/glib2.0-2.39.91/./gobject/gclosure.c:831
        marshal = 0x7f2c245f7b30 <g_type_class_meta_marshalv>
        marshal_data = 0x98
        in_marshal = 0
        real_closure = 0xd2ae20
        __FUNCTION__ = "_g_closure_invoke_va"
#12 0x00007f2c24612088 in g_signal_emit_valist (instance=0xd2f140, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fff454ec978) at /build/buildd/glib2.0-2.39.91/./gobject/gsignal.c:3215
        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}}}
        accumulator = 0x0
        emission = {next = 0x0, instance = 0xd2f140, ihint = {signal_id = 9, detail = 0, run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 13794992}
        signal_id = 9
        instance_type = <optimized out>
        emission_return = {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}}}
        rtype = 4
        static_scope = 0
        fastpath_handler = <optimized out>
        closure = 0xd2ae40
        run_type = <optimized out>
        l = <optimized out>
        fastpath = <optimized out>
        instance_and_params = <optimized out>
        signal_return_type = <optimized out>
        param_values = <optimized out>
        i = <optimized out>
        n_params = <optimized out>
        __FUNCTION__ = "g_signal_emit_valist"
#13 0x00007f2c24612ce2 in g_signal_emit (instance=instance@entry=0xd2f140, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.39.91/./gobject/gsignal.c:3363
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff454eca50, reg_save_area = 0x7fff454ec990}}
#14 0x00007f2c248dc25a in g_application_open (application=application@entry=0xd2f140, files=files@entry=0xefa540, n_files=n_files@entry=1, hint=<optimized out>) at /build/buildd/glib2.0-2.39.91/./gio/gapplication.c:1950
        __FUNCTION__ = "g_application_open"
#15 0x000000000042c9ea in nautilus_application_local_command_line (application=0xd2f140, arguments=<optimized out>, exit_status=<optimized out>) at nautilus-application.c:1365
        perform_self_check = 0
        version = 0
        browser = 0
        kill_shell = 0
        open_new_window = 0
        no_default_window = 0
        select_uris = 0
        remaining = 0x0
        self = 0xd2f140
        options = {{long_name = 0x4ede97 "check", short_name = 99 'c', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff454eca98, description = 0x4ed6e0 "Perform a quick set of self-check tests.", arg_description = 0x0}, {long_name = 0x4ede9d "browser", short_name = 0 '\000', flags = 1, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff454ecaa0, description = 0x0, arg_description = 0x0}, {long_name = 0x4edea5 "version", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff454eca9c, description = 0x4ed710 "Show the version of the program.", arg_description = 0x0}, {long_name = 0x50bf9b "geometry", short_name = 103 'g', flags = 0, arg = G_OPTION_ARG_STRING, arg_data = 0xd2f020, description = 0x4ed738 "Create the initial window with the given geometry.", arg_description = 0x4edead "GEOMETRY"}, {long_name = 0x4ede8c "new-window", short_name = 119 'w', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff454ecaa8, description = 0x4ed770 "Always open a new window for browsing specified URIs", arg_description = 0x0}, {long_name = 0x4edeb6 "no-default-window", short_name = 110 'n', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff454ecaac, description = 0x4ed7a8 "Only create windows for explicitly specified URIs.", arg_description = 0x0}, {long_name = 0x4edec8 "no-desktop", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0xd2f018, description = 0x4ed7e0 "Never manage the desktop (ignore the GSettings preference).", arg_description = 0x0}, {long_name = 0x4eded3 "force-desktop", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0xd2f01c, description = 0x4ed820 "Always manage the desktop (ignore the GSettings preference).", arg_description = 0x0}, {long_name = 0x4edee1 "quit", short_name = 113 'q', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff454ecaa4, description = 0x4edee6 "Quit Nautilus.", arg_description = 0x0}, {long_name = 0x4f7cfa "select", short_name = 115 's', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff454ecab0, description = 0x4ed860 "Select specified URI in parent folder.", arg_description = 0x0}, {long_name = 0x4febf9 "", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_STRING_ARRAY, arg_data = 0x7fff454ecab8, description = 0x0, arg_description = 0x4edef5 "[URI...]"}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}
        context = 0xd2ede0
        error = 0x0
        argc = 1
        argv = 0xd1b510
        __FUNCTION__ = "nautilus_application_local_command_line"
        files = 0xefa540
        idx = <optimized out>
        len = 1
#16 0x00007f2c248dca2b in g_application_run (application=0xd2f140, argc=argc@entry=1, argv=argv@entry=0x7fff454ecf38) at /build/buildd/glib2.0-2.39.91/./gio/gapplication.c:2088
        error = 0xd271b0
        arguments = 0xd1b510
        status = 0
        __FUNCTION__ = "g_application_run"
#17 0x000000000042b561 in main (argc=1, argv=0x7fff454ecf38) at nautilus-main.c:104
        retval = <optimized out>
        application = 0xd2f140