🐛 Describe the bug

Repro from @eqy

1. git clone https://github.com/pytorch/pytorch
2. TORCH_CUDA_ARCH_LIST=10.0 python setup.py develop
3. open third_party/cutlass/include/cutlass/arch/arch.h for editing,
   make random invalid changes to the file so it won't compile
4. TORCH_CUDA_ARCH_LIST=10.0 python setup.py develop
   observe the build completes normally, when it should fail

Alternatively, try to switch one of the ArchTags in aten/src/ATen/native/cuda/RowwiseScaledMM.cu to Sm103 and observe the build breaks complaining that Sm103 isn't a member of cutlass::arch when it's clearly present in third_party/cutlass/include/cutlass/arch/arch.h

Versions

latest pytorch main branch, built from source

cc @malfet @seemethere