cmake automoc error when configuring qtwayland (in autotests)

$ cmake ../qt6 -DBUILD_WITH_PCH=OFF -DFEATURE_developer_build=ON -DWARNINGS_ARE_ERRORS=OFF -DQT_BUILD_TESTS=ON -DQT_USE_CCACHE=ON -DCMAKE_BUILD_TYPE=Debug -GNinja

Qt is now configured for building. Just run 'cmake --build . --parallel'

Once everything is built, Qt is installed. You should NOT run 'cmake --install .'
Note that this build cannot be deployed to other machines or devices.

To configure and build other Qt modules, you can use the following convenience script:
        /zhome/rutledge/dev/qt6-dbg/qtbase/bin/qt-configure-module

If reconfiguration fails for some reason, try to remove 'CMakeCache.txt' from the build directory 

-- Configuring done
CMake Error: AUTOMOC for target SharedClientTest: The "moc" executable "/zhome/rutledge/dev/qt6-dbg/qtbase/libexec/moc" does not exist.
CMake Generate step failed.  Build files cannot be regenerated correctly.