phablet@ubuntu-phablet:~$ DESKTOP_SESSION=unity8-mir MIR_SERVER_NAME=session-0 MIR_SOCKET=$XDG_RUNTIME_DIR/mir_socket QT_QPA_PLATFORM=mirserver qmlscene moo.qml 
qtmir.mir: MirServer created
[1424703944.113941] Server: Starting
[1424703944.114460] Loader: Loading modules from: /usr/lib/arm-linux-gnueabihf/mir/server-platform
[1424703944.114674] Loader: Loading module: /usr/lib/arm-linux-gnueabihf/mir/server-platform/graphics-dummy.so
[1424703944.117544] Loader: Loading module: /usr/lib/arm-linux-gnueabihf/mir/server-platform/graphics-android.so
[1424703944.118918] Platform Loader: Selected driver: android (version 0.11.0)
Exiting Mir! Reason: Nested Mir and Host Mir cannot use the same socket file to accept connections!
ERROR: QMirServer - Mir failed to start
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::logic_error> >'
  what():  Cannot use configuration before apply_settings() call
Aborted (core dumped)