That's an issue frequently reported in Ubuntu 13.10 (using 5.14.1)

Stacktrace

"#0  0x00007f2b3ca15f90 in _IO_vfprintf_internal (s=s@entry=0x7fff0444f9d0, format=<optimized out>, format@entry=0x448aa8 "%s: Migrated %s to new location: deleting old copy", ap=ap@entry=0x7fff0444fb88) at vfprintf.c:1655
        len = <optimized out>
        string_malloced = <optimized out>
        step0_jumps = {0, -11263, -4214, -4124, -4027, -3937, -3826, -3532, -3116, -2815, -2692, -1937, -2239, -2139, -1766, -16687, 265, 280, 47, 2130, -15904, -28, 883, -5283, -5210, -17380, 567, -2039, -2139, -3638}
        space = 0
        is_short = 0
        use_outdigits = 0
        step1_jumps = {0, 0, 0, 0, 0, 0, 0, 0, 0, -2815, -2692, -1937, -2239, -2139, -1766, -16687, 265, 280, 47, 2130, -15904, -28, 883, -5283, -5210, -17380, 567, -2039, -2139, 0}
        group = 0
        prec = -1
        step2_jumps = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2692, -1937, -2239, -2139, -1766, -16687, 265, 280, 47, 2130, -15904, -28, 883, -5283, -5210, -17380, 567, -2039, -2139, 0}
        string = <optimized out>
        left = 0
        is_long_double = 0
        width = 0
        step3a_jumps = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2037, 0, 0, 0, -1766, -16687, 265, 280, 47, 0, 0, 0, 0, -5283, 0, 0, 0, 0, 0, 0}
        alt = 0
        showsign = 0
        is_long = 0
        is_char = 0
        pad = 32 ' '
        step3b_jumps = {0 <repeats 11 times>, -2239, 0, 0, -1766, -16687, 265, 280, 47, 2130, -15904, -28, 883, -5283, -5210, -17380, 567, 0, 0, 0}
        step4_jumps = {0 <repeats 14 times>, -1766, -16687, 265, 280, 47, 2130, -15904, -28, 883, -5283, -5210, -17380, 567, 0, 0, 0}
        is_negative = <optimized out>
        number = <optimized out>
        base = <optimized out>
        the_arg = {pa_wchar = 0 L'\000', pa_int = 0, pa_long_int = 0, pa_long_long_int = 0, pa_u_int = 0, pa_u_long_int = 0, pa_u_long_long_int = 0, pa_double = 0, pa_long_double = 0, pa_string = 0x0, pa_wstring = 0x0, pa_pointer = 0x0, pa_user = 0x0}
        spec = 115 's'
        _buffer = {__routine = 0x0, __arg = 0x0, __canceltype = 0, __prev = 0x0}
        _avail = <optimized out>
        thousands_sep = 0x0
        grouping = 0xffffffffffffffff <Address 0xffffffffffffffff out of bounds>
        done = 16
        f = 0x448ab6 "s to new location: deleting old copy"
        lead_str_end = 0x448aa8 "%s: Migrated %s to new location: deleting old copy"
        end_of_spec = <optimized out>
        work_buffer = '\000' <repeats 568 times>"\246, \265\230>+\177\000\000\000\000\000\000\000\000\000\000\006\000\000\000\000\000\000\000\220\371D\004\377\177\000\000\246\265\230>+\177\000\000\236\203\323\220\000\000\000\000\n\000\000\000\000\000\000\000\260\371D\004\377\177\000\000@\227\330<+\177\000\000-\000\000\000\000\000\000\000\270\371D\004\377\177\000\000,\000\000\000\000\000\000\000,\000\000\000\000\000\000\000-\000\000\000\000\000\000\000\270\371D\004\377\177\000\000,\000\000\000\000\000\000\000\260'\b\002\000\000\000\000;\000\000\000\000\000\000\000\f\237\255<+\177\000\000\000\200\255\373+\177\000\000\260'\b\002\000\000\000\000\260'\b\002\000\000\000\000\260'\b\002\000\000\000\000\260'\b\002\000\000\000\000\334'\b\002\000\000\000\000\024(\b\002\000\000\000\000\260'\b\002\000\000\000\000\024(\b\002", '\000' <repeats 44 times>...
        workstart = 0x0
        workend = 0x7fff0444f988 "\320\371D\004\377\177"
        ap_save = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0x7fff0444fc70, reg_save_area = 0x7fff0444fba0}}
        nspecs_done = 1
        save_errno = 11
        readonly_format = 0
        args_malloced = 0x0
        specs = 0x0
        specs_malloced = false
        jump_table = "\001\000\000\004\000\016\000\006\000\000\a\002\000\003\t\000\005\b\b\b\b\b\b\b\b\b\000\000\000\000\000\000\000\032\000\031\000\023\023\023\000\035\000\000\f\000\000\000\000\000\000\025\000\000\000\000\022\000\r\000\000\000\000\000\000\032\000\024\017\023\023\023\n\017\034\000\v\030\027\021\026\f\000\025\033\020\000\000\022\000\r"
        __PRETTY_FUNCTION__ = "_IO_vfprintf_internal"
#1  0x00007f2b3cad9e61 in __GI___vasprintf_chk (result_ptr=result_ptr@entry=0x7fff0444fb18, flags=flags@entry=1, format=0x448aa8 "%s: Migrated %s to new location: deleting old copy", args=0x7fff0444fb88) at vasprintf_chk.c:66
        string = 0x20827b0 "_list: Migrated t have group 'Desktop Entry'"
        sf = {_sbf = {_f = {_flags = -72515584, _IO_read_ptr = 0x20827b0 "_list: Migrated t have group 'Desktop Entry'", _IO_read_end = 0x20827b0 "_list: Migrated t have group 'Desktop Entry'", _IO_read_base = 0x20827b0 "_list: Migrated t have group 'Desktop Entry'", _IO_write_base = 0x20827b0 "_list: Migrated t have group 'Desktop Entry'", _IO_write_ptr = 0x20827c0 "t have group 'Desktop Entry'", _IO_write_end = 0x2082814 "", _IO_buf_base = 0x20827b0 "_list: Migrated t have group 'Desktop Entry'", _IO_buf_end = 0x2082814 "", _IO_save_base = 0x0, _IO_backup_base = 0x0, _IO_save_end = 0x0, _markers = 0x0, _chain = 0x0, _fileno = 1023667551, _flags2 = 4, _old_offset = 34018112, _cur_column = 0, _vtable_offset = 10 '\n', _shortbuf = "\002", _lock = 0x0, _offset = 34271376, _codecvt = 0x4489f8, _wide_data = 0x0, _freeres_list = 0x0, _freeres_buf = 0x0, _freeres_size = 139823683620729, _mode = -1, _unused2 = "\000\000\000\000\200\360\003=+\177\000\000@\255\n\002\000\000\000"}, vtable = 0x7f2b3cd88760 <_IO_str_jumps>}, _s = {_allocate_buffer = 0x7f2b3ca4c470 <__GI___libc_malloc>, _free_buffer = 0x7f2b3ca4c900 <__GI___libc_free>}}
        ret = <optimized out>
        needed = <optimized out>
        allocated = <optimized out>
#2  0x00007f2b3d034cdc in vasprintf (__ap=<optimized out>, __fmt=<optimized out>, __ptr=0x7fff0444fb18) at /usr/include/x86_64-linux-gnu/bits/stdio2.h:210
No locals.
#3  g_vasprintf (string=string@entry=0x7fff0444fb18, format=<optimized out>, args=args@entry=0x7fff0444fb88) at /build/buildd/glib2.0-2.37.6/./glib/gprintf.c:314
        __PRETTY_FUNCTION__ = "g_vasprintf"
#4  0x00007f2b3d0123b0 in g_strdup_vprintf (format=<optimized out>, args=args@entry=0x7fff0444fb88) at /build/buildd/glib2.0-2.37.6/./glib/gstrfuncs.c:517
        string = 0x0
#5  0x00007f2b3e45e89a in tp_debug_sender_add_message_vprintf (self=0x206e330, timestamp=0x0, formatted=0x0, domain=0x43a3ae "mcd", level=G_LOG_LEVEL_DEBUG, format=<optimized out>, args=0x7fff0444fb88) at debug-sender.c:452
        message = 0x0
#6  0x000000000040ebc4 in mcd_debug (format=format@entry=0x448aa8 "%s: Migrated %s to new location: deleting old copy") at mcd-debug.c:189
        message = 0x0
        formatted = <optimized out>
        dbg = 0x206e330
        args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff0444fc70, reg_save_area = 0x7fff0444fba0}}
#7  0x00000000004394e6 in _list (self=0x2087b20, am=0x20af090) at mcd-account-manager-default.c:780
        i = <optimized out>
        n = 139823710566149
        accounts = <optimized out>
        rval = 0x0
        amd = 0x2087b20
        __FUNCTION__ = "_list"
#8  0x0000000000435532 in mcd_storage_load (self=<optimized out>) at mcd-storage.c:371
        account = <optimized out>
        pname = <optimized out>
        prio = <optimized out>
        plugin = 0x2087b20
        stored = <optimized out>
        ma = 0x20af090
        store = 0x207e160
        __PRETTY_FUNCTION__ = "mcd_storage_load"
        __FUNCTION__ = "mcd_storage_load"
#9  0x000000000042858a in _mcd_account_manager_constructed (obj=<optimized out>) at mcd-account-manager.c:1648
        account_manager = 0x2087a60
        priv = <optimized out>
        i = 0
        sig = {{name = 0x43afe5 "created", handler = 0x4286b0 <created_cb>}, {name = 0x4425dd "altered", handler = 0x429c20 <altered_cb>}, {name = 0x4425e5 "toggled", handler = 0x429af0 <toggled_cb>}, {name = 0x4425ed "deleted", handler = 0x4285d0 <deleted_cb>}, {name = 0x4425f5 "altered-one", handler = 0x429a00 <altered_one_cb>}, {name = 0x442601 "reconnect", handler = 0x429940 <reconnect_cb>}, {name = 0x0, handler = 0x0}}
        __FUNCTION__ = "_mcd_account_manager_constructed"
#10 0x00007f2b3d4e84aa in g_object_new_internal (class=class@entry=0x207bf90, params=params@entry=0x7fff0444ff50, n_params=1) at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:1785
        nqueue = 0x207a850
        object = 0x2087a60
        __FUNCTION__ = "g_object_new_internal"
#11 0x00007f2b3d4ea634 in g_object_new_valist (object_type=object_type@entry=34060608, first_property_name=first_property_name@entry=0x43a90d "dbus-daemon", var_args=var_args@entry=0x7fff044500a8) at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:2002
        stack_params = {{pspec = 0x20b1190, value = 0x7fff0444fea0}, {pspec = 0x7f2b3c9d9cf0, value = 0x4034b0}, {pspec = 0x500000000, value = 0x1000004a2}, {pspec = 0x7f2b3d4d5858, value = 0x7fff04450128}, {pspec = 0x7fff04450100, value = 0x7f2b3eb7fb30}, {pspec = 0x7f2b3eba65c0, value = 0x7f2b3eba6268}, {pspec = 0x5, value = 0x7f2b3e98c1a9}, {pspec = 0x0, value = 0x7f2b3eb7fb30}, {pspec = 0x5, value = 0x0}, {pspec = 0x1, value = 0x7f2b3eba6268}, {pspec = 0x2077550, value = 0x6598d8 <email address hidden>}, {pspec = 0x0, value = 0x2073b50}, {pspec = 0x0, value = 0x7f2b3eba65c0}, {pspec = 0x7fff04450060, value = 0x7fff04450050}, {pspec = 0x1081a446, value = 0x102078310}, {pspec = 0x2077fc0, value = 0x407989}}
        params = 0x7fff0444ff50
        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"
#12 0x00007f2b3d4eaa14 in g_object_new (object_type=34060608, first_property_name=first_property_name@entry=0x43a90d "dbus-daemon") at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:1559
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff04450190, reg_save_area = 0x7fff044500c0}}
        __PRETTY_FUNCTION__ = "g_object_new"
#13 0x000000000042963f in mcd_account_manager_new (dbus_daemon=0x2078250) at mcd-account-manager.c:1666
        obj = <optimized out>
#14 0x0000000000410ad2 in mcd_master_constructor (type=34056960, n_params=2, params=<optimized out>) at mcd-master.c:383
        object_class = 0x207aed0
        master = 0x2078310
        priv = <optimized out>
        __PRETTY_FUNCTION__ = "mcd_master_constructor"
        __FUNCTION__ = "mcd_master_constructor"
#15 0x00007f2b3d4e8404 in g_object_new_with_custom_constructor (n_params=1, params=0x7fff044503a0, class=0x207bce0) at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:1665
        cparams = 0x2078da0
        cvalues = <optimized out>
        node = 0x0
        i = <optimized out>
        nqueue = 0x0
        object = <optimized out>
        n_cparams = 2
        cvals_used = 1
#16 g_object_new_internal (class=class@entry=0x207bce0, params=params@entry=0x7fff044503a0, n_params=1) at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:1744
        nqueue = 0x0
        object = <optimized out>
        __FUNCTION__ = "g_object_new_internal"
#17 0x00007f2b3d4ea634 in g_object_new_valist (object_type=object_type@entry=34056960, first_property_name=first_property_name@entry=0x43a90d "dbus-daemon", var_args=var_args@entry=0x7fff044504f8) at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:2002
        stack_params = {{pspec = 0x2073b50, value = 0x7fff044502f0}, {pspec = 0x100000000, value = 0x10000025d}, {pspec = 0x80, value = 0x7fff04450568}, {pspec = 0x7fff04450540, value = 0x0}, {pspec = 0x7f2b3eba65c0, value = 0x7f2b3eba6268}, {pspec = 0x1, value = 0x7f2b3e98c1a9}, {pspec = 0x0, value = 0x0}, {pspec = 0x1, value = 0x0}, {pspec = 0x1, value = 0x7f2b3eba6268}, {pspec = 0x3100000006, value = 0x6e0000005b}, {pspec = 0x7c00000077, value = 0x7fff04450460}, {pspec = 0x0, value = 0x7f2b3eba65c0}, {pspec = 0x7fff044504a0, value = 0x7fff04450490}, {pspec = 0x180b0cb, value = 0x13cd89740}, {pspec = 0x2066510, value = 0x404a8d}, {pspec = 0xffffffff, value = 0x207abd0}}
        params = 0x7fff044503a0
        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"
#18 0x00007f2b3d4eaa14 in g_object_new (object_type=34056960, first_property_name=first_property_name@entry=0x43a90d "dbus-daemon") at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:1559
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff044505e0, reg_save_area = 0x7fff04450510}}
        __PRETTY_FUNCTION__ = "g_object_new"
#19 0x000000000041026c in mcd_service_new () at mcd-service.c:180
        obj = <optimized out>
        dbus_daemon = 0x2078250
        error = 0x0
#20 0x000000000040e340 in main (argc=<optimized out>, argv=<optimized out>) at mc-server.c:174
        act = {__sigaction_handler = {sa_handler = 0xf63d4e2e, sa_sigaction = 0xf63d4e2e}, sa_mask = {__val = {5318445309, 33964032, 4225460, 4294967295, 166027348, 139823677280544, 139823712591872, 33964416, 0, 33983104, 1, 1, 4432397, 0, 0, 4432304}}, sa_flags = 4253175, sa_restorer = 0x7fff04450810}
        empty_mask = {__val = {1, 139823710519721, 0, 139823712566064, 1, 0, 1, 139823712723560, 80, 33973520, 0, 140733265020672, 0, 139823712724416, 140733265020608, 140733265020592}}"