#0  on_get_job_attributes_cb (source_object=<optimized out>, res=<optimized out>, user_data=<optimized out>) at cc-printers-panel.c:346
        self = <optimized out>
        priv = 0x0
        job_originating_user_name = 0x7feae8001310 "leon"
        job_printer_uri = 0x7feae8026dd0 "ipp://localhost/printers/Samsung-M2020-Series"
        attributes = 0x7feb50031990
        username = 0x7feb5002b230
        printer_uri = 0x559ceed14760
        error = 0x0
#1  0x00007feb82196203 in g_task_return_now (task=0x7feb180076e0) at ../../../../gio/gtask.c:1145
No locals.
#2  0x00007feb82196239 in complete_in_idle_cb (task=0x7feb180076e0) at ../../../../gio/gtask.c:1159
No locals.
#3  0x00007feb81be5e25 in g_main_dispatch (context=0x559cee6108e0) at ../../../../glib/gmain.c:3148
        dispatch = 0x7feb81be2760 <g_idle_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x7feb180076e0
        callback = 0x7feb82196230 <complete_in_idle_cb>
        cb_funcs = 0x7feb81ead280 <g_source_callback_funcs>
        cb_data = 0x7feae8026140
        need_destroy = <optimized out>
        source = 0x7feae802c690
        current = 0x559cee9e5590
        i = 20
#4  g_main_context_dispatch (context=context@entry=0x559cee6108e0) at ../../../../glib/gmain.c:3813
No locals.
#5  0x00007feb81be61f0 in g_main_context_iterate (context=context@entry=0x559cee6108e0, block=block@entry=0, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3886
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 3
        fds = 0x559ceec95bb0
#6  0x00007feb81be627c in g_main_context_iteration (context=context@entry=0x559cee6108e0, may_block=may_block@entry=0) at ../../../../glib/gmain.c:3947
        retval = <optimized out>
#7  0x00007feb821abcba in g_application_run (application=0x559cee65c700, argc=<optimized out>, argv=<optimized out>) at ../../../../gio/gapplication.c:2425
        arguments = 0x559cee9cebe0
        status = 0
        context = 0x559cee6108e0
        acquired_context = <optimized out>
        __func__ = "g_application_run"
#8  0x0000559ced9ea891 in main (argc=<optimized out>, argv=<optimized out>) at main.c:57
        application = 0x559cee65c700
        status = <optimized out>