Comment 2 for bug 1950828

StacktraceTop:
 g_mutex_clear (mutex=<optimized out>) at ../../../glib/gthread-posix.c:1479
 g_mutex_clear (mutex=mutex@entry=0x5566a43b9890) at ../../../glib/gthread-posix.c:1474
 bus_dbus_impl_destroy (dbus=0x5566a43b9830) at ./bus/dbusimpl.c:654
 g_closure_invoke (closure=0x5566a43af910, return_value=0x0, n_param_values=1, param_values=0x7ffc72a477a0, invocation_hint=0x7ffc72a47720) at ../../../gobject/gclosure.c:810
 signal_emit_unlocked_R (node=node@entry=0x5566a43af960, detail=detail@entry=0, instance=instance@entry=0x5566a43b9830, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7ffc72a477a0) at ../../../gobject/gsignal.c:3780