==18133== Invalid read of size 8
==18133==    at 0xFE513D1: st_button_dispose_old_bg (st-button.c:114)
==18133==    by 0x7F4744D: g_closure_invoke (gclosure.c:767)
==18133==    by 0x7F5B512: signal_emit_unlocked_R (gsignal.c:3247)
==18133==    by 0x7F5C8CE: g_signal_emit_valist (gsignal.c:2980)
==18133==    by 0x7F5CDD2: g_signal_emit (gsignal.c:3037)
==18133==    by 0x7F4744D: g_closure_invoke (gclosure.c:767)
==18133==    by 0x7F5B512: signal_emit_unlocked_R (gsignal.c:3247)
==18133==    by 0x7F5C8CE: g_signal_emit_valist (gsignal.c:2980)
==18133==    by 0x7F5CDD2: g_signal_emit (gsignal.c:3037)
==18133==    by 0x694D5E7: clutter_timeline_do_tick (clutter-timeline.c:657)
==18133==    by 0x692FA5A: _clutter_master_clock_advance (clutter-master-clock.c:456)
==18133==    by 0x692FBED: clutter_clock_dispatch (clutter-master-clock.c:286)
==18133==    by 0x89D190D: g_main_context_dispatch (gmain.c:1960)
==18133==    by 0x89D52C7: g_main_context_iterate (gmain.c:2591)
==18133==    by 0x89D5724: g_main_loop_run (gmain.c:2799)
==18133==    by 0x442376: main (main.c:686)
==18133==  Address 0x24348568 is 56 bytes inside a block of size 576 free'd
==18133==    at 0x4C21DBC: free (vg_replace_malloc.c:325)
==18133==    by 0x7F66529: g_type_free_instance (gtype.c:1717)
==18133==    by 0xFE5887F: st_scroll_bar_dispose (st-scroll-bar.c:187)
==18133==    by 0x7F497DF: g_object_run_dispose (gobject.c:815)
==18133==    by 0x6910AB8: clutter_actor_destroy (clutter-actor.c:4363)
==18133==    by 0xFE4E667: st_box_layout_dispose (st-box-layout.c:495)
==18133==    by 0x7F497DF: g_object_run_dispose (gobject.c:815)
==18133==    by 0x6910AB8: clutter_actor_destroy (clutter-actor.c:4363)
==18133==    by 0xFE4E667: st_box_layout_dispose (st-box-layout.c:495)
==18133==    by 0x7F497DF: g_object_run_dispose (gobject.c:815)
==18133==    by 0x6910AB8: clutter_actor_destroy (clutter-actor.c:4363)
==18133==    by 0xFE4E667: st_box_layout_dispose (st-box-layout.c:495)
==18133==    by 0x7F497DF: g_object_run_dispose (gobject.c:815)
==18133==    by 0x6910AB8: clutter_actor_destroy (clutter-actor.c:4363)
==18133==    by 0x8793DE3: ffi_call_unix64 (in /usr/lib/libffi.so.5.0.10)
==18133==    by 0x8793BE2: ffi_call (in /usr/lib/libffi.so.5.0.10)
==18133==    by 0x7D30945: g_function_info_invoke (ginvoke.c:240)
==18133==    by 0x1009B832: gjs_invoke_c_function (function.c:676)
==18133==    by 0x1050DF9A: js_Invoke (jsinterp.cpp:1386)
==18133==    by 0x104FF1A3: js_Interpret (jsinterp.cpp:5179)
==18133==    by 0x1050DFA4: js_Invoke (jsinterp.cpp:1394)
==18133==    by 0x1050E2FB: js_InternalInvoke (jsinterp.cpp:1447)
==18133==    by 0x104D6774: JS_CallFunctionValue (jsapi.cpp:5193)
==18133==    by 0x102B451B: gjs_call_function_value (jsapi-util.c:916)
==18133==    by 0x1009A1CC: gjs_closure_invoke (closure.c:264)
==18133==    by 0x100A1A14: closure_marshal (value.c:117)
==18133==    by 0x7F4744D: g_closure_invoke (gclosure.c:767)
==18133==    by 0x7F5B512: signal_emit_unlocked_R (gsignal.c:3247)
==18133==    by 0x7F5C769: g_signal_emit_valist (gsignal.c:2990)
==18133==    by 0x7F5CDD2: g_signal_emit (gsignal.c:3037)
==18133==    by 0x69085AF: clutter_actor_event (clutter-actor.c:6848)
==18133==    by 0x692E1E2: _clutter_process_event (clutter-main.c:1876)
==18133==    by 0x69405C7: _clutter_stage_process_queued_events (clutter-stage.c:481)
==18133==    by 0x692FBD8: clutter_clock_dispatch (clutter-master-clock.c:284)
==18133==    by 0x89D190D: g_main_context_dispatch (gmain.c:1960)
==18133==    by 0x89D52C7: g_main_context_iterate (gmain.c:2591)
==18133==    by 0x89D5724: g_main_loop_run (gmain.c:2799)
==18133==    by 0x442376: main (main.c:686)
