#0  0x00007f38b63207c3 in _dbus_header_get_byte_order (header=header@entry=0x7f38a8001e08) at ../../dbus/dbus-marshal-header.c:178
  [Error: ../../dbus/dbus-marshal-header.c was not found in source tree]
#1  0x00007f38b6321134 in _dbus_header_get_field_basic (header=0x7f38a8001e08, field=field@entry=5, type=type@entry=117, value=value@entry=0x7f38b0eaa69c) at ../../dbus/dbus-marshal-header.c:1370
  [Error: ../../dbus/dbus-marshal-header.c was not found in source tree]
#2  0x00007f38b6325711 in dbus_message_get_reply_serial (message=<optimized out>) at ../../dbus/dbus-message.c:1091
  [Error: ../../dbus/dbus-message.c was not found in source tree]
#3  0x00007f38b6319a3e in _dbus_connection_queue_received_message_link (connection=0x7f38a8001f50, link=link@entry=0xfba0d0) at ../../dbus/dbus-connection.c:501
  [Error: ../../dbus/dbus-connection.c was not found in source tree]
#4  0x00007f38b633157b in _dbus_transport_queue_messages (transport=transport@entry=0x7f38a8001850) at ../../dbus/dbus-transport.c:1157
  [Error: ../../dbus/dbus-transport.c was not found in source tree]
#5  0x00007f38b6331f84 in do_reading (transport=transport@entry=0x7f38a8001850) at ../../dbus/dbus-transport-socket.c:851
  [Error: ../../dbus/dbus-transport-socket.c was not found in source tree]
#6  0x00007f38b63325e6 in do_reading (transport=0x7f38a8001850) at ../../dbus/dbus-transport-socket.c:706
  [Error: ../../dbus/dbus-transport-socket.c was not found in source tree]
#7  socket_do_iteration (transport=0x7f38a8001850, flags=6, timeout_milliseconds=<optimized out>) at ../../dbus/dbus-transport-socket.c:1162
  [Error: ../../dbus/dbus-transport-socket.c was not found in source tree]
#8  0x00007f38b633131d in _dbus_transport_do_iteration (transport=0x7f38a8001850, flags=5, flags@entry=6, timeout_milliseconds=117, timeout_milliseconds@entry=25000) at ../../dbus/dbus-transport.c:976
  [Error: ../../dbus/dbus-transport.c was not found in source tree]
#9  0x00007f38b631bfc4 in _dbus_connection_do_iteration_unlocked (connection=connection@entry=0x7f38a8001f50, pending=pending@entry=0x7f38a80017a0, flags=flags@entry=6, timeout_milliseconds=timeout_milliseconds@entry=25000) at ../../dbus/dbus-connection.c:1234
  [Error: ../../dbus/dbus-connection.c was not found in source tree]
#10 0x00007f38b631d36d in _dbus_connection_block_pending_call (pending=0x7f38a80017a0) at ../../dbus/dbus-connection.c:2415
  [Error: ../../dbus/dbus-connection.c was not found in source tree]
#11 0x00007f38b632b36a in dbus_pending_call_block (pending=<optimized out>) at ../../dbus/dbus-pending-call.c:748
  [Error: ../../dbus/dbus-pending-call.c was not found in source tree]
#12 0x00007f38b631c76c in dbus_connection_send_with_reply_and_block (connection=connection@entry=0x7f38a8001f50, message=message@entry=0xfcfcf0, timeout_milliseconds=timeout_milliseconds@entry=-1, error=error@entry=0x0) at ../../dbus/dbus-connection.c:3530
  [Error: ../../dbus/dbus-connection.c was not found in source tree]
#13 0x00007f38b6317e4c in dbus_bus_register (connection=connection@entry=0x7f38a8001f50, error=error@entry=0x0) at ../../dbus/dbus-bus.c:692
  [Error: ../../dbus/dbus-bus.c was not found in source tree]
#14 0x00007f38b631810f 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]
#15 0x00007f38b13668ac in ?? ()
#16 0x0000000000f906f0 in ?? ()
#17 0x00007f38a8001190 in ?? ()
#18 0x00007f38b0eaaa60 in ?? ()
#19 0x0000000000f906f0 in ?? ()
#20 0x00007f38a8001170 in ?? ()
#21 0x00007f38b1780299 in libproxy::proxy_factory::check_network_topology (this=0x0, this@entry=0xf906f0) 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]
#22 0x00007f38b178209a in libproxy::proxy_factory::get_proxies (this=this@entry=0xf906f0, 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]
#23 0x00007f38b178259d in px_proxy_factory_get_proxies (self=0xf906f0, url=url@entry=0xfd4390 "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]
#24 0x00007f38b26d01fe in get_libproxy_proxies (resolver=0xf88560, uri=0xfd4390 "http://geoip.ubuntu.com/", cancellable=<optimized out>, error=error@entry=0x7f38b0eaad38) at glibproxyresolver.c:146
  [Error: glibproxyresolver.c was not found in source tree]
#25 0x00007f38b26d0284 in _lookup_async (task=0xfb32d0, object=<optimized out>, task_data=<optimized out>, cancellable=<optimized out>) at glibproxyresolver.c:198
  [Error: glibproxyresolver.c was not found in source tree]
#26 0x00007f38b884e965 in g_task_thread_pool_thread (thread_data=0xfb32d0, 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]
#27 0x00007f38b80b18b2 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]
#28 0x00007f38b80b1075 in g_thread_proxy (data=0xfd1a80) 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]
#29 0x00007f38b7e2ef8e in start_thread (arg=0x7f38b0eab700) at pthread_create.c:311
  [Error: pthread_create.c was not found in source tree]
#30 0x00007f38b7b58e1d 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]