#0  0x00007f84c657ad28 in type_node_check_conformities_UorL (have_lock=0, support_prerequisites=0, support_interfaces=0, iface_node=0x7f84c6797168, node=0x1) at /build/buildd/glib2.0-2.29.90/./gobject/gtype.c:3420
No locals.
#1  type_node_conforms_to_U (support_prerequisites=0, support_interfaces=0, iface_node=0x7f84c6797168, node=0x1) at /build/buildd/glib2.0-2.29.90/./gobject/gtype.c:3466
No locals.
#2  g_type_check_class_cast (type_class=0x7f84c5e0b328, is_a_type=0) at /build/buildd/glib2.0-2.29.90/./gobject/gtype.c:4021
        node = 0x1
        iface = 0x7f84c6797168
        is_classed = 0
        check = <optimized out>
#3  0x00000000000001c0 in ?? ()
No symbol table info available.
#4  0x00007f84bc0ea320 in ?? ()
No symbol table info available.
#5  0x00007f84c6810662 in gst_structure_copy (structure=0x7f84c682a8dc) at gststructure.c:312
        new_field = {name = 3319837480, value = {g_type = 0, data = {{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}, {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}}}}
        new_structure = 0x21df120
        field = <optimized out>
        i = <optimized out>
        len = <optimized out>
        __PRETTY_FUNCTION__ = "gst_structure_copy"
#6  0x00007f84c65526d0 in g_boxed_type_register_static (name=0x7fffafa281c8 "\320\323\342\001", boxed_copy=0, boxed_free=0x7f84c6797168 <static_fundamental_type_nodes+2024>) at /build/buildd/glib2.0-2.29.90/./gobject/gboxed.c:297
        _g_boolean_var_ = <optimized out>
        vtable = {value_init = 0, value_free = 0, value_copy = 0, value_peek_pointer = 0, collect_format = 0x7f84c6552430 "\350\273\205\002", collect_value = 0x7f84c6552650 <g_object_bind_property_with_closures+304>, lcopy_format = 0x7f84c6552670 "H\213G\b\303ff.\017\037\204", lcopy_value = 0x7f84c6552440 <g_object_bind_property_full+1056>}
        type_info = {class_size = 33592, base_init = 0x1e2d3d0, base_finalize = 0x7f84b00ea100, class_init = 0x7f84b00ea108, class_finalize = 0x7f84bc0ea320, class_data = 0x0, instance_size = 0, n_preallocs = 0, instance_init = 0, value_table = 0x0}
        type = <optimized out>
        __PRETTY_FUNCTION__ = "g_boxed_type_register_static"
#7  0x0000000000000000 in ?? ()
No symbol table info available.