#0  __GI___libc_free (mem=0x100000001) at malloc.c:3709
        ar_ptr = <optimized out>
        p = <optimized out>
        hook = 0
#1  0x00007fb6a91a6233 in tp_contact_finalize (object=0x17eb800) at contact.c:819
        self = 0x17eb800
#2  0x00007fb6a4b5b9f0 in g_object_unref (_object=0x17eb800) at /build/buildd/glib2.0-2.30.0/./gobject/gobject.c:2746
        __PRETTY_FUNCTION__ = "g_object_unref"
#3  0x00007fb6aa0d225b in tpf_persona_finalize (obj=0x1cd53e0) at tpf-persona.c:1888
        self = 0x1cd53e0
        _tmp0_ = <optimized out>
        _tmp1_ = <optimized out>
#4  0x00007fb6a4b5b9f0 in g_object_unref (_object=0x1cd53e0) at /build/buildd/glib2.0-2.30.0/./gobject/gobject.c:2746
        __PRETTY_FUNCTION__ = "g_object_unref"
#5  0x00007fb6a5537a67 in gee_hash_set_real_clear (base=0x21cfee0) at hashset.c:521
        _tmp2_ = 0x0
        next = 0x0
        _tmp3_ = <optimized out>
        _tmp1_ = <optimized out>
        node = 0x225fec0
        i = <optimized out>
        self = 0x21cfee0
#6  0x00007fb6a5537f54 in gee_hash_set_finalize (obj=0x21cfee0) at hashset.c:952
        self = 0x21cfee0
#7  0x00007fb6a4b5b9f0 in g_object_unref (_object=0x21cfee0) at /build/buildd/glib2.0-2.30.0/./gobject/gobject.c:2746
        __PRETTY_FUNCTION__ = "g_object_unref"
#8  0x00007fb6aa0d72d7 in _tpf_persona_store_load_cache_co (_data_=0x13de6e0) at tpf-persona-store.c:3376
        __PRETTY_FUNCTION__ = "_tpf_persona_store_load_cache_co"
#9  0x00007fb6a501fc17 in g_simple_async_result_complete (simple=0x17b39e0) at /build/buildd/glib2.0-2.30.0/./gio/gsimpleasyncresult.c:749
        current_source = 0x0
        current_context = 0x0
        __PRETTY_FUNCTION__ = "g_simple_async_result_complete"
#10 0x00007fb6a9eaf895 in folks_object_cache_load_objects_co (_data_=0x1674ba0) at object-cache.c:959
        __PRETTY_FUNCTION__ = "folks_object_cache_load_objects_co"
#11 0x00007fb6a501fc17 in g_simple_async_result_complete (simple=0x178a520) at /build/buildd/glib2.0-2.30.0/./gio/gsimpleasyncresult.c:749
        current_source = 0x0
        current_context = 0x0
        __PRETTY_FUNCTION__ = "g_simple_async_result_complete"
#12 0x00007fb6a4ff5f2f in load_contents_close_callback (obj=<optimized out>, close_res=<optimized out>, user_data=0x1c44e60) at /build/buildd/glib2.0-2.30.0/./gio/gfile.c:6264
        stream = <optimized out>
        data = 0x1c44e60
        res = 0x178a520
#13 0x00007fb6a500fb2c in async_ready_close_callback_wrapper (source_object=0x1a0ef60, res=0x198d580, user_data=0x1c44e60) at /build/buildd/glib2.0-2.30.0/./gio/ginputstream.c:484
        stream = 0x1a0ef60
#14 0x00007fb6a501fc17 in g_simple_async_result_complete (simple=0x198d580) at /build/buildd/glib2.0-2.30.0/./gio/gsimpleasyncresult.c:749
        current_source = 0x0
        current_context = 0x0
        __PRETTY_FUNCTION__ = "g_simple_async_result_complete"
#15 0x00007fb6a501fca8 in complete_in_idle_cb_for_thread (_data=0x23ab010) at /build/buildd/glib2.0-2.30.0/./gio/gsimpleasyncresult.c:817
        data = 0x23ab010
        simple = 0x198d580
#16 0x00007fb6a4693a5d in g_main_dispatch (context=0x124b140) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441
        dispatch = 0x7fb6a468f790 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x23ab010
        callback = 0x7fb6a501fc80 <complete_in_idle_cb_for_thread>
        cb_funcs = 0x7fb6a4943670
        cb_data = 0x7fb6901254e0
        current_source_link = {data = 0x7fb690124920, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7fb690124920
        current = 0x13652a0
        i = <optimized out>
#17 g_main_context_dispatch (context=0x124b140) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011
No locals.
#18 0x00007fb6a4694258 in g_main_context_iterate (context=0x124b140, 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 = 7
        allocated_nfds = <optimized out>
        fds = <optimized out>
#19 0x00007fb6a4694792 in g_main_loop_run (loop=0x1379c60) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#20 0x00007fb6a61ffe1d in gtk_main () at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkmain.c:1367
        loop = 0x1379c60
#21 0x00007fb6a504da4e in g_application_run (application=0x137c040, argc=<optimized out>, argv=0x7fff10e17e88) at /build/buildd/glib2.0-2.30.0/./gio/gapplication.c:1323
        arguments = 0x1379c60
        status = 0
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#22 0x000000000043d66c in main (argc=1, argv=0x7fff10e17e88) at empathy.c:838
        app = 0x137c040
        retval = <optimized out>