Seems like it could be rather a bug in telepathy-glib, other connectors have the same issue, e.g telepathy-salut

"#0  0xb72e015d in g_logv (log_domain=log_domain@entry=0xb732040e "GLib", 
    log_level=<optimized out>, log_level@entry=G_LOG_LEVEL_CRITICAL, 
    format=format@entry=0xb7326dcc "Source ID %u was not found when attempting to remove it", args=args@entry=0xbfb5dddc "\005")
    at /build/buildd/glib2.0-2.39.1/./glib/gmessages.c:1019
#1  0xb72e0273 in g_log (log_domain=log_domain@entry=0xb732040e "GLib", 
    log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, 
    format=format@entry=0xb7326dcc "Source ID %u was not found when attempting to remove it") at /build/buildd/glib2.0-2.39.1/./glib/gmessages.c:1059
#2  0xb72d7a5c in g_source_remove (tag=5)
    at /build/buildd/glib2.0-2.39.1/./glib/gmain.c:2210
#3  0xb71af8ab in no_more_connections (conn=0x9d419e8) at run.c:113
#4  0xb73a7549 in g_cclosure_marshal_VOID__VOIDv (closure=0x9d4c888, 
    return_value=0x0, instance=0x9d419e8, args=0xbfb5dfac "", 
    marshal_data=0x0, n_params=0, param_types=0x0)
    at /build/buildd/glib2.0-2.39.1/./gobject/gmarshal.c:115
#5  0xb73a5aee in _g_closure_invoke_va (closure=closure@entry=0x9d4c888, 
    return_value=return_value@entry=0x0, instance=instance@entry=0x9d419e8, 
    args=args@entry=0xbfb5dfac "", n_params=0, param_types=0x0)
    at /build/buildd/glib2.0-2.39.1/./gobject/gclosure.c:840
#6  0xb73bee70 in g_signal_emit_valist (instance=instance@entry=0x9d419e8, 
    signal_id=signal_id@entry=7, detail=detail@entry=0, 
    var_args=var_args@entry=0xbfb5dfac "")
    at /build/buildd/glib2.0-2.39.1/./gobject/gsignal.c:3238
#7  0xb73bf9e3 in g_signal_emit (instance=instance@entry=0x9d419e8, 
    signal_id=7, detail=detail@entry=0)
    at /build/buildd/glib2.0-2.39.1/./gobject/gsignal.c:3386
#8  0xb70c5def in connection_shutdown_finished_cb (conn=0x9d54108, 
    data=0x9d419e8) at base-connection-manager.c:642
#9  0xb73a7549 in g_cclosure_marshal_VOID__VOIDv (closure=0x9d4f450, 
    return_value=0x0, instance=0x9d54108, args=0xbfb5e17c "\r", 
    marshal_data=0x0, n_params=0, param_types=0x0)
    at /build/buildd/glib2.0-2.39.1/./gobject/gmarshal.c:115
#10 0xb73a5aee in _g_closure_invoke_va (closure=closure@entry=0x9d4f450, 
    return_value=return_value@entry=0x0, instance=instance@entry=0x9d54108, 
    args=args@entry=0xbfb5e17c "\r", n_params=0, param_types=0x0)
    at /build/buildd/glib2.0-2.39.1/./gobject/gclosure.c:840
#11 0xb73bee70 in g_signal_emit_valist (instance=instance@entry=0x9d54108, 
    signal_id=signal_id@entry=21, detail=detail@entry=0, 
    var_args=var_args@entry=0xbfb5e17c "\r")
    at /build/buildd/glib2.0-2.39.1/./gobject/gsignal.c:3238
#12 0xb73bf9e3 in g_signal_emit (instance=instance@entry=0x9d54108, 
    signal_id=21, detail=detail@entry=0)
    at /build/buildd/glib2.0-2.39.1/./gobject/gsignal.c:3386
#13 0xb70c3c27 in tp_base_connection_finish_shutdown (self=0x9d54108)
    at base-connection.c:2896
#14 0x0807f310 in ?? ()
#15 0xb7455515 in g_simple_async_result_complete (simple=0x9d37618)
    at /build/buildd/glib2.0-2.39.1/./gio/gsimpleasyncresult.c:777
#16 0xb769e640 in ?? ()
   from /usr/lib/telepathy/salut-0/lib/libwocky-telepathy-salut-0.8.1.so
..."