.
Thread 1 (LWP 2631):
#0  0x00007fcb01e17369 in g_logv (log_domain=0x7fcb01747f78 "GLib-GIO", log_level=G_LOG_LEVEL_ERROR, format=<optimized out>, args=args@entry=0x7fffb8ebdeb8) at /build/buildd/glib2.0-2.37.6/./glib/gmessages.c:989
        domain = 0x0
        data = 0x0
        depth = 1
        log_func = 0x7fcb01e16b00 <g_log_default_handler>
        domain_fatal_mask = <optimized out>
        masquerade_fatal = 0
        test_level = <optimized out>
        was_fatal = <optimized out>
        was_recursion = <optimized out>
        msg = 0x1e28e60 "Settings schema 'com.canonical.Unity.Launcher' is not installed\n"
        msg_alloc = 0x1e28e60 "Settings schema 'com.canonical.Unity.Launcher' is not installed\n"
        i = 2
#1  0x00007fcb01e174b2 in g_log (log_domain=log_domain@entry=0x7fcb01747f78 "GLib-GIO", log_level=log_level@entry=G_LOG_LEVEL_ERROR, format=format@entry=0x7fcb01765930 "Settings schema '%s' is not installed\n") at /build/buildd/glib2.0-2.37.6/./glib/gmessages.c:1025
        args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffb8ebdf90, reg_save_area = 0x7fffb8ebded0}}
#2  0x00007fcb0170452f in g_settings_set_property (object=<optimized out>, prop_id=<optimized out>, value=<optimized out>, pspec=<optimized out>) at /build/buildd/glib2.0-2.37.6/./gio/gsettings.c:492
        default_source = <optimized out>
        schema_id = 0x1d1bec0 "com.canonical.Unity.Launcher"
        settings = 0x1f0ec30
        __FUNCTION__ = "g_settings_set_property"
#3  0x00007fcb020de8a9 in object_set_property (nqueue=0x1cf5070, value=<optimized out>, pspec=0x1d9f140, object=0x1f0ec30) at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:1366
        tmp_value = {g_type = 64, data = {{v_int = 30523072, v_uint = 30523072, v_long = 30523072, v_ulong = 30523072, v_int64 = 30523072, v_uint64 = 30523072, v_float = 7.70481876e-38, v_double = 1.5080401280738869e-316, v_pointer = 0x1d1bec0}, {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}}}
        redirect = <optimized out>
        enable_diagnostic = 0x7fcb0210c056 "0"
        class = 0x1d118c0
        param_id = 2
#4  g_object_new_internal (class=class@entry=0x1d118c0, params=params@entry=0x7fffb8ebe140, n_params=1) at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:1779
        value = <optimized out>
        pspec = 0x1d9f140
        j = <optimized out>
        node = 0x1cf5150
        nqueue = 0x1cf5070
        object = 0x1f0ec30
        __FUNCTION__ = "g_object_new_internal"
#5  0x00007fcb020e0634 in g_object_new_valist (object_type=object_type@entry=32499584, first_property_name=first_property_name@entry=0x7fcb01765453 "schema-id", var_args=var_args@entry=0x7fffb8ebe298) at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:2002
        stack_params = {{pspec = 0x1d9f140, value = 0x7fffb8ebe090}, {pspec = 0x2, value = 0x0}, {pspec = 0x0, value = 0x1ca4590}, {pspec = 0x7fffb8ebe180, value = 0x1ca4590}, {pspec = 0x1ef3f50, value = 0x0}, {pspec = 0x0, value = 0x1ca4918}, {pspec = 0x7fffb8ebe1e0, value = 0x7fffb8ebe1d0}, {pspec = 0x82b5dc65, value = 0x1ca4590}, {pspec = 0x1dcc730, value = 0x7fcb043265bc}, {pspec = 0xffffffff, value = 0x4ecf9e <PyDict_GetItem+366>}, {pspec = 0x7fcb0165df50, value = 0x1ca4590}, {pspec = 0x7fffb8ebe230, value = 0x7fffb8ebe220}, {pspec = 0x2084dcdc, value = 0x7fcb04351f38}, {pspec = 0x52c190 <function_call>, value = 0x7fcb04351f38}, {pspec = 0x52c190 <function_call>, value = 0x8ff520 <PyFunction_Type>}, {pspec = 0x1d13020, value = 0x4e20d1 <instancemethod_call.8798+385>}}
        params = 0x7fffb8ebe140
        name = <optimized out>
        n_params = 1
        class = <optimized out>
        unref_class = <optimized out>
        object = <optimized out>
        __PRETTY_FUNCTION__ = "g_object_new_valist"
        __FUNCTION__ = "g_object_new_valist"
#6  0x00007fcb020e0a14 in g_object_new (object_type=32499584, first_property_name=0x7fcb01765453 "schema-id") at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:1559
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffb8ebe380, reg_save_area = 0x7fffb8ebe2b0}}
        __PRETTY_FUNCTION__ = "g_object_new"
#7  0x00007fcb0144fadc in ffi_call_unix64 () at ../src/x86/unix64.S:76
No locals.
#8  0x00007fcb0144f40c in ffi_call (cif=cif@entry=0x7fffb8ebe570, fn=fn@entry=0x7fcb01704560 <g_settings_new>, rvalue=rvalue@entry=0x7fffb8ebe550, avalue=avalue@entry=0x7fffb8ebe490) at ../src/x86/ffi64.c:522
        classes = {X86_64_INTEGER_CLASS, X86_64_NO_CLASS, 3102467440, 32767}
        stack = 0x7fffb8ebe2d0 "P\337e\001\313\177"
        argp = 0x7fffb8ebe380 "\016"
        arg_types = <optimized out>
        gprcount = 1
        ssecount = <optimized out>
        ngpr = 1
        nsse = 0
        i = <optimized out>
        avn = <optimized out>
        ret_in_memory = <optimized out>
        reg_args = 0x7fffb8ebe2d0
#9  0x00007fcb02325d19 in g_callable_info_invoke (info=info@entry=0x1ef9770, function=0x7fcb01704560 <g_settings_new>, in_args=in_args@entry=0x1cf5140, n_in_args=n_in_args@entry=1, out_args=out_args@entry=0x0, n_out_args=n_out_args@entry=0, return_value=return_value@entry=0x7fffb8ebe748, is_method=is_method@entry=0, throws=0, error=error@entry=0x7fffb8ebe6f8) at girepository/gicallableinfo.c:680
        cif = {abi = FFI_UNIX64, nargs = 1, arg_types = 0x7fffb8ebe4b0, rtype = 0x7fcb0144fdb0 <ffi_type_pointer>, bytes = 0, flags = 14}
        rtype = 0x7fcb0144fdb0 <ffi_type_pointer>
        atypes = 0x7fffb8ebe4b0
        tinfo = <optimized out>
        rinfo = 0x1f0ea80
        rtag = GI_TYPE_TAG_INTERFACE
        ainfo = <optimized out>
        n_args = 1
        n_invoke_args = 1
        in_pos = 1
        out_pos = <optimized out>
        i = <optimized out>
        args = 0x7fffb8ebe490
        success = 0
        local_error = 0x0
        error_address = 0x7fffb8ebe560
        ffi_return_value = {v_boolean = 131, v_int8 = -125 '\203', v_uint8 = 131 '\203', v_int16 = 131, v_uint16 = 131, v_int32 = 131, v_uint32 = 131, v_int64 = 343597383811, v_uint64 = 343597383811, v_float = 1.83570099e-43, v_double = 1.6975966334194438e-312, v_short = 131, v_ushort = 131, v_int = 131, v_uint = 131, v_long = 343597383811, v_ulong = 343597383811, v_ssize = 343597383811, v_size = 343597383811, v_string = 0x5000000083 <Address 0x5000000083 out of bounds>, v_pointer = 0x5000000083}
        return_value_p = 0x7fffb8ebe550
        __FUNCTION__ = "g_callable_info_invoke"
        __PRETTY_FUNCTION__ = "g_callable_info_invoke"
#10 0x00007fcb02327057 in g_function_info_invoke (info=info@entry=0x1ef9770, in_args=0x1cf5140, n_in_args=1, out_args=0x0, n_out_args=0, return_value=return_value@entry=0x7fffb8ebe748, error=error@entry=0x7fffb8ebe6f8) at girepository/gifunctioninfo.c:274
        symbol = <optimized out>
        func = 0x7fcb01704560 <g_settings_new>
        is_method = 0
        throws = <optimized out>
#11 0x00007fcb02563027 in _invoke_callable (function_ptr=0x0, callable_info=0x1ef9770, cache=0x1cf3b60, state=0x7fffb8ebe700) at ../../gi/pygi-invoke.c:64
        _save = 0x1bc10a0
        error = 0x0
        retval = <optimized out>
#12 pygi_callable_info_invoke (info=<optimized out>, py_args=py_args@entry=0x1ce45a8, kwargs=<optimized out>, cache=<optimized out>, function_ptr=function_ptr@entry=0x0, user_data=user_data@entry=0x0) at ../../gi/pygi-invoke.c:652
        state = {py_in_args = 0x7fcb04368790, n_py_in_args = 1, current_arg = 0, implementor_gtype = 0, args = 0x1cf5110, in_args = 0x1cf5140, args_data = 0x1cf5120, out_args = 0x0, out_values = 0x0, return_arg = {v_boolean = 0, v_int8 = 0 '\000', v_uint8 = 0 '\000', v_int16 = 0, v_uint16 = 0, v_int32 = 0, v_uint32 = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_short = 0, v_ushort = 0, v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_ssize = 0, v_size = 0, v_string = 0x0, v_pointer = 0x0}, error = 0x0, failed = 0, user_data = 0x0}
        ret = 0x0
#13 0x00007fcb025639bd in _wrap_g_callable_info_invoke (self=<optimized out>, py_args=py_args@entry=0x1ce45a8, kwargs=kwargs@entry=0x0) at ../../gi/pygi-invoke.c:675
No locals.
#14 0x00007fcb0255936e in _callable_info_call (self=0x1dbffb8, args=0x7fcb04368750, kwargs=0x0) at ../../gi/pygi-info.c:428
        i = <optimized out>
        result = <optimized out>
        argcount = 1
        newargs = 0x1ce45a8
        kwargs = 0x0
        args = 0x7fcb04368750
        self = 0x1dbffb8
#15 0x00000000004fe720 in PyObject_Call (kw=0x0, arg=0x7fcb04368750, func=0x1dbffb8) at ../Objects/abstract.c:2529
        result = <optimized out>
        call = 0x7fcb02559400 <_function_info_call>
#16 do_call (nk=<optimized out>, na=<optimized out>, pp_stack=0x7fffb8ebe8f0, func=0x1dbffb8) at ../Python/ceval.c:4239
        callargs = <optimized out>
        kwdict = 0x0
        result = 0x0
#17 call_function (oparg=<optimized out>, pp_stack=0x7fffb8ebe8f0) at ../Python/ceval.c:4044
        func = 0x1dbffb8
        w = <optimized out>
        na = <optimized out>
        nk = <optimized out>
        n = <optimized out>
        pfunc = 0x1e0f3e8
        x = <optimized out>
#18 PyEval_EvalFrameEx (f=f@entry=0x1e0f220, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x1e0f3f0
        stack_pointer = <optimized out>
        next_instr = 0x1ca3144 "}\001"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = <optimized out>
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = 0x1e0f398
        freevars = <optimized out>
        retval = <optimized out>
        tstate = <optimized out>
        co = <optimized out>
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = <optimized out>
        names = <optimized out>
        consts = <optimized out>
        enter = 0x7fcb0444ade0
        exit = 0x7fcb0444ae10
#19 0x00000000004fea32 in fast_function (nk=<optimized out>, na=<optimized out>, n=0, pp_stack=0x7fffb8ebea30, func=0x1ecb668) at ../Python/ceval.c:4107
        retval = 0x0
        fastlocals = 0x1e0f398
        i = <optimized out>
        f = 0x1e0f220
        tstate = 0x1bc10a0
        stack = <optimized out>
        co = <optimized out>
        nd = 0
        globals = <optimized out>
        argdefs = <optimized out>
        d = 0x0
#20 call_function (oparg=<optimized out>, pp_stack=0x7fffb8ebea30) at ../Python/ceval.c:4042
        func = 0x1ecb668
        w = <optimized out>
        na = <optimized out>
        nk = <optimized out>
        n = 0
        pfunc = 0x1c8f838
        x = <optimized out>
#21 PyEval_EvalFrameEx (f=f@entry=0x1c8f6c0, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x1c8f840
        stack_pointer = <optimized out>
        next_instr = 0x7fcb043bb5c2 "\001n"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = <optimized out>
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = 0x1c8f838
        freevars = <optimized out>
        retval = <optimized out>
        tstate = <optimized out>
        co = <optimized out>
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = <optimized out>
        names = <optimized out>
        consts = <optimized out>
        enter = 0x7fcb0444ade0
        exit = 0x7fcb0444ae10
#22 0x000000000056c414 in PyEval_EvalCodeEx (co=0x7fcb043bae30, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=<optimized out>, kws=<optimized out>, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3253
        f = <optimized out>
        retval = 0x0
        fastlocals = <optimized out>
        freevars = <optimized out>
        tstate = <optimized out>
        x = <optimized out>
        u = <optimized out>
#23 0x00000000005ba3b2 in PyEval_EvalCode (co=<optimized out>, globals=<optimized out>, locals=<optimized out>) at ../Python/ceval.c:667
No locals.
#24 0x00000000005abe1b in run_mod.42564 (mod=<optimized out>, filename=<optimized out>, globals=0x1bfe690, locals=0x1bfe690, flags=<optimized out>, arena=<optimized out>) at ../Python/pythonrun.c:1365
        co = 0x7fcb043bae30
        v = <optimized out>
#25 0x000000000045270b in PyRun_FileExFlags (fp=fp@entry=0x1c8f6a0, filename=filename@entry=0x7fffb8ec0871 "/usr/share/session-migration/scripts/install-default-webapps-in-launcher.py", start=start@entry=257, globals=globals@entry=0x1bfe690, locals=locals@entry=0x1bfe690, closeit=closeit@entry=1, flags=flags@entry=0x7fffb8ebec70) at ../Python/pythonrun.c:1351
        ret = <optimized out>
        mod = 0x1c89998
        arena = 0x1c658f0
#26 0x0000000000452f05 in PyRun_SimpleFileExFlags (fp=fp@entry=0x1c8f6a0, filename=<optimized out>, filename@entry=0x7fffb8ec0871 "/usr/share/session-migration/scripts/install-default-webapps-in-launcher.py", closeit=closeit@entry=1, flags=flags@entry=0x7fffb8ebec70) at ../Python/pythonrun.c:943
        m = 0x7fcb04468cc8
        d = 0x1bfe690
        v = <optimized out>
        ext = 0x7fffb8ec08b8 "r.py"
        set_file_name = 1
        len = <optimized out>
        ret = -1
#27 0x0000000000453001 in PyRun_AnyFileExFlags (fp=fp@entry=0x1c8f6a0, filename=filename@entry=0x7fffb8ec0871 "/usr/share/session-migration/scripts/install-default-webapps-in-launcher.py", closeit=closeit@entry=1, flags=flags@entry=0x7fffb8ebec70) at ../Python/pythonrun.c:747
No locals.
#28 0x0000000000453b6a in Py_Main (argc=<optimized out>, argv=0x7fffb8ebee28) at ../Modules/main.c:640
        c = <optimized out>
        sts = <optimized out>
        command = 0x0
        filename = 0x7fffb8ec0871 "/usr/share/session-migration/scripts/install-default-webapps-in-launcher.py"
        module = 0x0
        fp = 0x1c8f6a0
        p = <optimized out>
        unbuffered = <optimized out>
        skipfirstline = <optimized out>
        stdin_is_interactive = 0
        help = <optimized out>
        version = <optimized out>
        saw_unbuffered_flag = <optimized out>
        cf = {cf_flags = 0}
#29 0x00007fcb0339bde5 in __libc_start_main (main=0x453c28 <main>, argc=2, ubp_av=0x7fffb8ebee28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb8ebee18) at libc-start.c:260
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6919379665972385154, 5744344, 140736295857696, 0, 0, 6919249821136562814, 6948890027705084542}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x5bb4e0 <__libc_csu_init>, 0x7fffb8ebee28}, data = {prev = 0x0, cleanup = 0x0, canceltype = 6010080}}}
        not_first_call = <optimized out>
#30 0x000000000057a701 in _start ()
No symbol table info available.