#0  0x00007f9be66b8f79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  [Error: ../nptl/sysdeps/unix/sysv/linux/raise.c was not found in source tree]
#1  0x00007f9be66bc388 in __GI_abort () at abort.c:89
  [Error: abort.c was not found in source tree]
#2  0x00007f9be6f2f175 in g_assertion_message (domain=domain@entry=0x7f9be7514ab8 "GLib-GIO", file=file@entry=0x7f9be75385d0 "/build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c", line=line@entry=6936, func=func@entry=0x7f9be753a190 <__FUNCTION__.25672> "message_bus_get_singleton", message=message@entry=0x7f9bd0005390 "code should not be reached") at /build/buildd/glib2.0-2.39.91/./glib/gtestutils.c:2291
  [Error: /build/buildd/glib2.0-2.39.91/./glib/gtestutils.c was not found in source tree]
#3  0x00007f9be6f2f20a in g_assertion_message_expr (domain=0x7f9be7514ab8 "GLib-GIO", file=0x7f9be75385d0 "/build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c", line=6936, func=0x7f9be753a190 <__FUNCTION__.25672> "message_bus_get_singleton", expr=<optimized out>) at /build/buildd/glib2.0-2.39.91/./glib/gtestutils.c:2306
  [Error: /build/buildd/glib2.0-2.39.91/./glib/gtestutils.c was not found in source tree]
#4  0x00007f9be74df419 in message_bus_get_singleton (bus_type=3780, bus_type@entry=G_BUS_TYPE_NONE, error=0x7f9bdf7fdbc8) at /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c:6936
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c was not found in source tree]
#5  0x00007f9be74e217b in get_uninitialized_connection (bus_type=G_BUS_TYPE_NONE, cancellable=cancellable@entry=0x0, error=error@entry=0x7f9bdf7fdbc8) at /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c:6956
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c was not found in source tree]
#6  0x00007f9be74e768b in g_bus_get_sync (bus_type=bus_type@entry=G_BUS_TYPE_NONE, cancellable=cancellable@entry=0x0, error=error@entry=0x7f9bdf7fdbc8) at /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c:7042
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c was not found in source tree]
#7  0x00007f9be7795ec0 in dconf_gdbus_get_bus_in_worker (bus_type=G_BUS_TYPE_NONE, error=error@entry=0x7f9bdf7fdc38) at dconf-gdbus-thread.c:185
  [Error: dconf-gdbus-thread.c was not found in source tree]
#8  0x00007f9be7795f9d in dconf_gdbus_method_call (user_data=0xe642a0) at dconf-gdbus-thread.c:243
  [Error: dconf-gdbus-thread.c was not found in source tree]
#9  0x00007f9be7795d9e in dconf_gdbus_method_call_done (source=<optimized out>, result=0x7f9bd00042c0, user_data=0xe644b0) at dconf-gdbus-thread.c:231
  [Error: dconf-gdbus-thread.c was not found in source tree]
#10 0x00007f9be748bf57 in g_simple_async_result_complete (simple=0x7f9bd00042c0) at /build/buildd/glib2.0-2.39.91/./gio/gsimpleasyncresult.c:763
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gsimpleasyncresult.c was not found in source tree]
#11 0x00007f9be74e496a in g_dbus_connection_call_done (source=<optimized out>, result=<optimized out>, user_data=0x7f9bd0003560) at /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c:5498
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c was not found in source tree]
#12 0x00007f9be748bf57 in g_simple_async_result_complete (simple=0x7f9bd0004330) at /build/buildd/glib2.0-2.39.91/./gio/gsimpleasyncresult.c:763
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gsimpleasyncresult.c was not found in source tree]
#13 0x00007f9be748bfb9 in complete_in_idle_cb (data=<optimized out>) at /build/buildd/glib2.0-2.39.91/./gio/gsimpleasyncresult.c:775
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gsimpleasyncresult.c was not found in source tree]
#14 0x00007f9be6f0ace5 in g_main_dispatch (context=0xe66840) at /build/buildd/glib2.0-2.39.91/./glib/gmain.c:3064
  [Error: /build/buildd/glib2.0-2.39.91/./glib/gmain.c was not found in source tree]
#15 g_main_context_dispatch (context=context@entry=0xe66840) at /build/buildd/glib2.0-2.39.91/./glib/gmain.c:3663
  [Error: /build/buildd/glib2.0-2.39.91/./glib/gmain.c was not found in source tree]
#16 0x00007f9be6f0b048 in g_main_context_iterate (context=context@entry=0xe66840, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.39.91/./glib/gmain.c:3734
  [Error: /build/buildd/glib2.0-2.39.91/./glib/gmain.c was not found in source tree]
#17 0x00007f9be6f0b0ec in g_main_context_iteration (context=context@entry=0xe66840, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.39.91/./glib/gmain.c:3795
  [Error: /build/buildd/glib2.0-2.39.91/./glib/gmain.c was not found in source tree]
#18 0x00007f9be77960dd in dconf_gdbus_worker_thread (user_data=0xe66840) at dconf-gdbus-thread.c:82
  [Error: dconf-gdbus-thread.c was not found in source tree]
#19 0x00007f9be6f2ff15 in g_thread_proxy (data=0xe51e30) at /build/buildd/glib2.0-2.39.91/./glib/gthread.c:764
  [Error: /build/buildd/glib2.0-2.39.91/./glib/gthread.c was not found in source tree]
#20 0x00007f9be6a50182 in start_thread (arg=0x7f9bdf7fe700) at pthread_create.c:312
  [Error: pthread_create.c was not found in source tree]
#21 0x00007f9be677d12d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
  [Error: ../sysdeps/unix/sysv/linux/x86_64/clone.S was not found in source tree]