[REG 6.9.0beta3 snapshot->6.9.0 beta3] the -DFEATURE_gui=OFF build fails

cmake -DFEATURE_gui=OFF -G Ninja -DCMAKE_INSTALL_PREFIX:PATH=/home/qt/RTA/src-6.9.0/qtbase /home/qt/RTA/src-6.9.0 

-- The CXX compiler identification is GNU 11.4.0
-- The C compiler identification is GNU 11.4.0
-- The ASM compiler identification is GNU
-- Found assembler: /usr/bin/cc
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Checking dependencies of submodule 'qtbase'
-- Checking dependencies of submodule 'qtimageformats'
-- Checking dependencies of submodule 'qtlanguageserver'
-- Checking dependencies of submodule 'qtshadertools'
-- Checking dependencies of submodule 'qtsvg'
-- Checking dependencies of submodule 'qtdeclarative'
-- Checking dependencies of submodule 'qtquicktimeline'
-- Checking dependencies of submodule 'qtquick3d'
-- Checking dependencies of submodule 'qtmultimedia'
-- Checking dependencies of submodule 'qt3d'
-- Checking dependencies of submodule 'qt5compat'
-- Checking dependencies of submodule 'qtactiveqt'
-- Checking dependencies of submodule 'qtcharts'
-- Checking dependencies of submodule 'qtcoap'
-- Checking dependencies of submodule 'qtconnectivity'
-- Checking dependencies of submodule 'qtdatavis3d'
-- Checking dependencies of submodule 'qtgraphs'
-- Checking dependencies of submodule 'qtwebsockets'
-- Checking dependencies of submodule 'qthttpserver'
-- Checking dependencies of submodule 'qtserialport'
-- Checking dependencies of submodule 'qtpositioning'
-- Checking dependencies of submodule 'qtlocation'
-- Checking dependencies of submodule 'qttools'
-- Checking dependencies of submodule 'qtwebchannel'
-- Checking dependencies of submodule 'qtwebengine'
-- Checking dependencies of submodule 'qtdoc'
-- Checking dependencies of submodule 'qtgrpc'
-- Checking dependencies of submodule 'qtlottie'
-- Checking dependencies of submodule 'qtmqtt'
-- Checking dependencies of submodule 'qtnetworkauth'
-- Checking dependencies of submodule 'qtopcua'
-- Checking dependencies of submodule 'qtquick3dphysics'
-- Checking dependencies of submodule 'qtquickeffectmaker'
-- Checking dependencies of submodule 'qtremoteobjects'
-- Checking dependencies of submodule 'qtscxml'
-- Checking dependencies of submodule 'qtsensors'
-- Checking dependencies of submodule 'qtserialbus'
-- Checking dependencies of submodule 'qtspeech'
-- Checking dependencies of submodule 'qttranslations'
-- Checking dependencies of submodule 'qtvirtualkeyboard'
-- Checking dependencies of submodule 'qtwayland'
-- Checking dependencies of submodule 'qtwebview'
-- Configuring submodule 'qtbase'
-- [QtBase] Setting build type to 'Release' as none was specified.
-- Configuring submodule 'qtimageformats'
Skipping the build as the condition "TARGET Qt::Gui" is not met.
-- Configuring submodule 'qtlanguageserver'
-- Configuring submodule 'qtshadertools'
Skipping the build as the condition "TARGET Qt::Gui" is not met.
-- Configuring submodule 'qtsvg'
-- Configuring submodule 'qtdeclarative'
-- Could NOT find Qt6ShaderTools (missing: Qt6ShaderTools_DIR)
CMake Warning at qtbase/lib/cmake/Qt6/Qt6Config.cmake:269 (message):
  Failed to find optional Qt component "ShaderTools".  Expected Config file at
  "/home/qt/RTA/src-6.9.0/qtbase/lib/cmake/Qt6ShaderTools/Qt6ShaderToolsConfig.cmake"
  does NOT existCall Stack (most recent call first):
  qtdeclarative/CMakeLists.txt:45 (find_package)
-- Configuring submodule 'qtquicktimeline'
Skipping the build as the condition "TARGET Qt::Quick" is not met.
-- Configuring submodule 'qtquick3d'
Skipping the build as the condition "TARGET Qt::Quick" is not met.
-- Configuring submodule 'qtmultimedia'
-- Could NOT find Qt6Gui (missing: Qt6Gui_DIR)
CMake Error at qtmultimedia/CMakeLists.txt:16 (find_package):
  Found package configuration file:    /home/qt/RTA/src-6.9.0/qtbase/lib/cmake/Qt6/Qt6Config.cmake  but it set Qt6_FOUND to FALSE so package "Qt6" is considered to be NOT
  FOUND.  Reason given by package:  Failed to find required Qt component "Gui".  Expected Config file at
  "/home/qt/RTA/src-6.9.0/qtbase/lib/cmake/Qt6Gui/Qt6GuiConfig.cmake" does
  NOT exist  Configuring with --debug-find-pkg=Qt6Gui might reveal details why the
  package was not found.  Configuring with -DQT_DEBUG_FIND_PACKAGE=ON will print the values of some
  of the path variables that find_package uses to try and find the package.-- Configuring incomplete, errors occurred!