#0  __GI___pthread_mutex_lock (mutex=0x0) at pthread_mutex_lock.c:50
  [Error: pthread_mutex_lock.c was not found in source tree]
#1  0x41449a70 in pthread_mutex_lock (mutex=<optimized out>) at forward.c:192
  [Error: forward.c was not found in source tree]
#2  0x41168702 in mir::client::DisplayConfiguration::copy_to_client() const () at /usr/include/arm-linux-gnueabihf/c++/4.8/bits/gthr-default.h:748
  [Error: /usr/include/arm-linux-gnueabihf/c++/4.8/bits/gthr-default.h was not found in source tree]
#3  0x4116a8f8 in MirConnection::create_copy_of_display_config() () at /build/buildd/mir-0.0.14+13.10.20131011/src/client/mir_connection.cpp:364
  [Error: /build/buildd/mir-0.0.14+13.10.20131011/src/client/mir_connection.cpp was not found in source tree]
#4  0x411694e4 in mir_connection_get_display_info () at /build/buildd/mir-0.0.14+13.10.20131011/src/client/mir_client_library.cpp:296
  [Error: /build/buildd/mir-0.0.14+13.10.20131011/src/client/mir_client_library.cpp was not found in source tree]
#5  0x403cc384 in ua_ui_display_new_with_index (index=<optimized out>) at /build/buildd/platform-api-0.19+13.10.20131010.1/src/ubuntu/mirclient/ubuntu_application_api_mirclient.cpp:162
  [Error: /build/buildd/platform-api-0.19+13.10.20131010.1/src/ubuntu/mirclient/ubuntu_application_api_mirclient.cpp was not found in source tree]
#6  0x4111a1f6 in QUbuntuBaseScreen::QUbuntuBaseScreen() () at screen.cc:82
  [Error: screen.cc was not found in source tree]
#7  0x41118a0a in QUbuntuScreen::QUbuntuScreen(void*) () at screen.cc:54
  [Error: screen.cc was not found in source tree]
#8  0x41117f80 in QUbuntuIntegration::QUbuntuIntegration(QUbuntuInputAdaptorFactory*) () at integration.cc:75
  [Error: integration.cc was not found in source tree]
#9  0x41117aaa in QUbuntuMirIntegration::QUbuntuMirIntegration() () at integration.cc:39
  [Error: integration.cc was not found in source tree]
#10 0x41117536 in QUbuntuMirClientIntegrationPlugin::create(QString const&, QStringList const&) () at main.cc:41
  [Error: main.cc was not found in source tree]
#11 0x40c08ba8 in QGuiApplicationPrivate::createPlatformIntegration() () at kernel/qguiapplication.cpp:772
  [Error: kernel/qguiapplication.cpp was not found in source tree]
#12 0x40c091da in QGuiApplicationPrivate::createEventDispatcher() () at kernel/qguiapplication.cpp:902
  [Error: kernel/qguiapplication.cpp was not found in source tree]
#13 0x40247c86 in QCoreApplication::init() () at kernel/qcoreapplication.cpp:612
  [Error: kernel/qcoreapplication.cpp was not found in source tree]
#14 0x40247cca in QCoreApplication::QCoreApplication(QCoreApplicationPrivate&) () at kernel/qcoreapplication.cpp:549
  [Error: kernel/qcoreapplication.cpp was not found in source tree]
#15 0x40c098b0 in QGuiApplication::QGuiApplication(QGuiApplicationPrivate&) () at kernel/qguiapplication.cpp:380
  [Error: kernel/qguiapplication.cpp was not found in source tree]
#16 0x405adb86 in QApplication::QApplication(int&, char**, int) () at kernel/qapplication.cpp:541
  [Error: kernel/qapplication.cpp was not found in source tree]
#17 0x400b4d8c in WebBrowserApp::WebBrowserApp(int&, char**) () at /build/buildd/webbrowser-app-0.22+13.10.20131011.1/src/app/webbrowser-app.cpp:41
  [Error: /build/buildd/webbrowser-app-0.22+13.10.20131011.1/src/app/webbrowser-app.cpp was not found in source tree]
#18 0x400b2aaa in main () at /build/buildd/webbrowser-app-0.22+13.10.20131011.1/src/app/main.cpp:23
  [Error: /build/buildd/webbrowser-app-0.22+13.10.20131011.1/src/app/main.cpp was not found in source tree]