#0  _dbus_counter_adjust_size (counter=0x0, delta=128) at ../../dbus/dbus-resources.c:151
  [Error: ../../dbus/dbus-resources.c was not found in source tree]
#1  0x00007f32e4e2e4a4 in _dbus_message_add_counter_link (message=message@entry=0x74eaa0, link=0x7904a8) at ../../dbus/dbus-message.c:306
  [Error: ../../dbus/dbus-message.c was not found in source tree]
#2  0x00007f32e4e25076 in _dbus_connection_send_preallocated_unlocked_no_update (connection=connection@entry=0x7f32d0001f50, preallocated=0x7f32d0001780, message=message@entry=0x74eaa0, client_serial=client_serial@entry=0x0) at ../../dbus/dbus-connection.c:1990
  [Error: ../../dbus/dbus-connection.c was not found in source tree]
#3  0x00007f32e4e253a0 in _dbus_connection_send_unlocked_no_update (connection=connection@entry=0x7f32d0001f50, message=message@entry=0x74eaa0, client_serial=0x0) at ../../dbus/dbus-connection.c:3222
  [Error: ../../dbus/dbus-connection.c was not found in source tree]
#4  0x00007f32e4e25522 in dbus_connection_send_with_reply (connection=connection@entry=0x7f32d0001f50, message=message@entry=0x74eaa0, pending_return=pending_return@entry=0x7f32db9418d8, timeout_milliseconds=timeout_milliseconds@entry=-1) at ../../dbus/dbus-connection.c:3423
  [Error: ../../dbus/dbus-connection.c was not found in source tree]
#5  0x00007f32e4e25751 in dbus_connection_send_with_reply_and_block (connection=connection@entry=0x7f32d0001f50, message=message@entry=0x74eaa0, timeout_milliseconds=timeout_milliseconds@entry=-1, error=error@entry=0x0) at ../../dbus/dbus-connection.c:3517
  [Error: ../../dbus/dbus-connection.c was not found in source tree]
#6  0x00007f32e4e20e4c in dbus_bus_register (connection=connection@entry=0x7f32d0001f50, error=error@entry=0x0) at ../../dbus/dbus-bus.c:692
  [Error: ../../dbus/dbus-bus.c was not found in source tree]
#7  0x00007f32e4e2110f in internal_bus_get (type=DBUS_BUS_SYSTEM, private=1, error=0x0) at ../../dbus/dbus-bus.c:487
  [Error: ../../dbus/dbus-bus.c was not found in source tree]
#8  0x00007f32dbdfd8ac in ?? ()
#9  0x00000000007641f0 in ?? ()
#10 0x00007f32d0001190 in ?? ()
#11 0x00007f32db941a60 in ?? ()
#12 0x00000000007641f0 in ?? ()
#13 0x00007f32d0001170 in ?? ()
#14 0x00007f32e0289299 in libproxy::proxy_factory::check_network_topology (this=0x0, this@entry=0x7641f0) at /build/buildd/libproxy-0.4.11/libproxy/proxy.cpp:242
  [Error: /build/buildd/libproxy-0.4.11/libproxy/proxy.cpp was not found in source tree]
#15 0x00007f32e028b09a in libproxy::proxy_factory::get_proxies (this=this@entry=0x7641f0, realurl=...) at /build/buildd/libproxy-0.4.11/libproxy/proxy.cpp:205
  [Error: /build/buildd/libproxy-0.4.11/libproxy/proxy.cpp was not found in source tree]
#16 0x00007f32e028b59d in px_proxy_factory_get_proxies (self=0x7641f0, url=url@entry=0x7c09b0 "http://geoip.ubuntu.com/") at /build/buildd/libproxy-0.4.11/libproxy/proxy.cpp:463
  [Error: /build/buildd/libproxy-0.4.11/libproxy/proxy.cpp was not found in source tree]
#17 0x00007f32e11d91fe in get_libproxy_proxies (resolver=0x75e560, uri=0x7c09b0 "http://geoip.ubuntu.com/", cancellable=<optimized out>, error=error@entry=0x7f32db941d38) at glibproxyresolver.c:146
  [Error: glibproxyresolver.c was not found in source tree]
#18 0x00007f32e11d9284 in _lookup_async (task=0x788ee0, object=<optimized out>, task_data=<optimized out>, cancellable=<optimized out>) at glibproxyresolver.c:198
  [Error: glibproxyresolver.c was not found in source tree]
#19 0x00007f32e7357965 in g_task_thread_pool_thread (thread_data=0x788ee0, pool_data=<optimized out>) at /build/buildd/glib2.0-2.35.8/./gio/gtask.c:1242
  [Error: /build/buildd/glib2.0-2.35.8/./gio/gtask.c was not found in source tree]
#20 0x00007f32e6bba8b2 in g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.35.8/./glib/gthreadpool.c:309
  [Error: /build/buildd/glib2.0-2.35.8/./glib/gthreadpool.c was not found in source tree]
#21 0x00007f32e6bba075 in g_thread_proxy (data=0x7bf680) at /build/buildd/glib2.0-2.35.8/./glib/gthread.c:798
  [Error: /build/buildd/glib2.0-2.35.8/./glib/gthread.c was not found in source tree]
#22 0x00007f32e6937f8e in start_thread (arg=0x7f32db942700) at pthread_create.c:311
  [Error: pthread_create.c was not found in source tree]
#23 0x00007f32e6661e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
  [Error: ../sysdeps/unix/sysv/linux/x86_64/clone.S was not found in source tree]