#0  0x00007f81e21c038c in g_settings_backend_dispatch_signal (backend=backend@entry=0xbcf6d0, function_offset=function_offset@entry=0, name=name@entry=0xc240d0 "/org/gnome/desktop/interface/enable-animations", data1=data1@entry=0x0, data1_copy=0x7f81e21bff90 <pointer_id>, data1_copy@entry=0x0, data1_free=0x7f81e21bffa0 <pointer_ignore>, data1_free@entry=0x0, data2=data2@entry=0x0) at /build/buildd/glib2.0-2.39.91/./gio/gsettingsbackend.c:336
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gsettingsbackend.c was not found in source tree]
#1  0x00007f81e21c084a in g_settings_backend_changed (backend=0xbcf6d0, key=0xc240d0 "/org/gnome/desktop/interface/enable-animations", origin_tag=origin_tag@entry=0x0) at /build/buildd/glib2.0-2.39.91/./gio/gsettingsbackend.c:396
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gsettingsbackend.c was not found in source tree]
#2  0x00007f81d986923e in dconf_engine_change_notify (engine=engine@entry=0x7f81d4003450, prefix=<optimized out>, changes=<optimized out>, tag=tag@entry=0x0, is_writability=is_writability@entry=0, origin_tag=origin_tag@entry=0x0, user_data=0xc17b40) at dconfsettingsbackend.c:277
  [Error: dconfsettingsbackend.c was not found in source tree]
#3  0x00007f81d98693b5 in dconf_engine_emit_changes (engine=engine@entry=0x7f81d4003450, changeset=<optimized out>, origin_tag=origin_tag@entry=0x0) at dconf-engine.c:931
  [Error: dconf-engine.c was not found in source tree]
#4  0x00007f81d9869aae in dconf_engine_change_completed (engine=0x7f81d4003450, handle=0xc218b0, reply=0x0, error=0x7f81d0001950) at dconf-engine.c:1008
  [Error: dconf-engine.c was not found in source tree]
#5  0x00007f81d986be4e in dconf_gdbus_method_call_done (source=<optimized out>, result=0xde2de0, user_data=0xc218b0) at dconf-gdbus-thread.c:231
  [Error: dconf-gdbus-thread.c was not found in source tree]
#6  0x00007f81e217ef57 in g_simple_async_result_complete (simple=0xde2de0) 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]
#7  0x00007f81e21d7916 in g_dbus_connection_call_done (source=<optimized out>, result=<optimized out>, user_data=0x7f81cc00e260) at /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c:5492
  [Error: /build/buildd/glib2.0-2.39.91/./gio/gdbusconnection.c was not found in source tree]
#8  0x00007f81e217ef57 in g_simple_async_result_complete (simple=0xde2e50) 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]
#9  0x00007f81e217efb9 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]
#10 0x00007f81e1bfdce5 in g_main_dispatch (context=0xc11d80) 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]
#11 g_main_context_dispatch (context=context@entry=0xc11d80) 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]
#12 0x00007f81e1bfe048 in g_main_context_iterate (context=context@entry=0xc11d80, 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]
#13 0x00007f81e1bfe0ec in g_main_context_iteration (context=context@entry=0xc11d80, 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]
#14 0x00007f81d986c18d in dconf_gdbus_worker_thread (user_data=0xc11d80) at dconf-gdbus-thread.c:82
  [Error: dconf-gdbus-thread.c was not found in source tree]
#15 0x00007f81e1c22f15 in g_thread_proxy (data=0x7f81cc004400) 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]
#16 0x00007f81e199f182 in start_thread (arg=0x7f81d9864700) at pthread_create.c:312
  [Error: pthread_create.c was not found in source tree]
#17 0x00007f81e16cc12d 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]