call "C:\teeks99-09\run\results\boost\bin.v2\standalone\msvc\msvc-14.3\msvc-setup.bat"  >nul
 cl /Zm800 -nologo "..\libs\python\test\upcast.cpp" -c -Fo"C:\teeks99-09\run\results\boost\bin.v2\libs\python\test\upcast.test\msvc-14.3\dbg\x86_6\dbg-symbl-off\pythn-3.1\thrd-mlt\upcast.obj"     -TP /wd4675 /EHs /GR /Zc:throwingNew /Od /Ob0 /W3 /MDd /Zc:forScope /Zc:wchar_t /Zc:inline /favor:blend -DBOOST_ALL_NO_LIB=1 -DBOOST_COBALT_USE_STD_PMR=1 -DBOOST_CONTAINER_DYN_LINK=1 -DBOOST_CONTAINER_NO_LIB=1 -DBOOST_PYTHON_NO_LIB -DBOOST_PYTHON_SUPPRESS_REGISTRY_INITIALIZATION "-I.." "-IC:\Python311-64\include" "-IC:\teeks99-09\run\boost_root\libs\assert\include" "-IC:\teeks99-09\run\boost_root\libs\bind\include" "-IC:\teeks99-09\run\boost_root\libs\container\include" "-IC:\teeks99-09\run\boost_root\libs\container_hash\include" "-IC:\teeks99-09\run\boost_root\libs\conversion\include" "-IC:\teeks99-09\run\boost_root\libs\core\include" "-IC:\teeks99-09\run\boost_root\libs\describe\include" "-IC:\teeks99-09\run\boost_root\libs\detail\include" "-IC:\teeks99-09\run\boost_root\libs\function\include" "-IC:\teeks99-09\run\boost_root\libs\function_types\include" "-IC:\teeks99-09\run\boost_root\libs\fusion\include" "-IC:\teeks99-09\run\boost_root\libs\integer\include" "-IC:\teeks99-09\run\boost_root\libs\intrusive\include" "-IC:\teeks99-09\run\boost_root\libs\iterator\include" "-IC:\teeks99-09\run\boost_root\libs\lexical_cast\include" "-IC:\teeks99-09\run\boost_root\libs\move\include" "-IC:\teeks99-09\run\boost_root\libs\mp11\include" "-IC:\teeks99-09\run\boost_root\libs\optional\include" "-IC:\teeks99-09\run\boost_root\libs\python\include" "-IC:\teeks99-09\run\boost_root\libs\smart_ptr\include" "-IC:\teeks99-09\run\boost_root\libs\throw_exception\include" "-IC:\teeks99-09\run\boost_root\libs\tuple\include" "-IC:\teeks99-09\run\boost_root\libs\type_traits\include" 

upcast.cpp
..\libs\python\test\upcast.cpp(16): error C2102: '&' requires l-value
..\libs\python\test\upcast.cpp(17): error C2102: '&' requires l-value