Update to latest Rust upstream

[bytesnake]

Currently blocked on EnzymeAD/Enzyme#1044

FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/FunctionUtils.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/MustExitScalarEvolution.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/CacheUtility.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/ActivityAnalysisPrinter.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/InstructionBatcher.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/ActivityAnalysis.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/DifferentialUseAnalysis.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/DiffeGradientUtils.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/CApi.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/Enzyme.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/GradientUtils.cpp.o
FAILED: Enzyme/CMakeFiles/LLVMEnzyme-16.dir/EnzymeLogic.cpp.o

[bytesnake]

Done