ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/434] AR lib/libclangToolingDependencyScanning.a
[2/434] AR lib/liblldbPluginDisassemblerLLVMC.a
[3/434] AR lib/libLLVMDTLTO.a
[4/434] AR lib/libLLVMOrcDebugging.a
[5/434] AR lib/libLLVMOptDriver.a
[6/434] AR lib/libLLVMExegesis.a
[7/434] AR lib/liblldMachO.a
[8/434] AR lib/libclangTooling.a
[9/434] AR lib/liblldCOFF.a
[10/434] AR lib/liblldELF.a
[11/434] ACTION //llvm/utils/llvm-lit:llvm-lit(//llvm/utils/gn/build/toolchain:unix)
FAILED: bin/llvm-lit 
python3 ../../llvm/utils/gn/build/write_cmake_config.py -o bin/llvm-lit ../../llvm/utils/llvm-lit/llvm-lit.in LLVM_SOURCE_DIR=../../../llvm Python3_EXECUTABLE=/usr/bin/env\ python3 BUILD_MODE=. LLVM_LIT_CONFIG_MAP=\#\ Takes\ a\ path\ that\'s\ relative\ to\ __file__\ and\ makes\ it\ absolute.\\ndef\ path\(p\):\\n\ \ \ \ return\ os.path.abspath\(os.path.join\(__file__,\ \'..\',\ p\)\)\ if\ p\ else\ \'\'\\n\\nmap_config\(\\n\ \ \ \ path\(r\'../../../bolt/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/bolt/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../bolt/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/bolt/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/clangd/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/clangd/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/clangd/unittests/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/clangd/unittests/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lld/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lld/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lld/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lld/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/API/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/API/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/Shell/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/Shell/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../llvm/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/llvm/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../llvm/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/llvm/test/Unit/lit.site.cfg.py\'\)\)
Traceback (most recent call last):
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 122, in <module>
    sys.exit(main())
             ~~~~^^
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 72, in main
    in_line = var_re.sub(repl, in_line)
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 70, in repl
    return values[key]
           ~~~~~~^^^^^
KeyError: 'LLVM_WINDOWS_PREFER_FORWARD_SLASH'
[12/434] AR lib/libclangDoc.a
[13/434] AR lib/libfindAllSymbols.a
[14/434] AR lib/libclangCodeGen.a
[15/434] LINK ./bin/llvm-cxxmap
[16/434] LINK ./bin/lli-child-target
[17/434] LINK obj/llvm/unittests/ExecutionEngine/ExecutionEngineTests
[18/434] LINK obj/llvm/unittests/CGData/CodeGenDataTests
[19/434] LINK ./bin/llvm-cxxdump
[20/434] LINK ./bin/llvm-mc
[21/434] LINK ./bin/llvm-lipo
[22/434] LINK ./bin/llvm-libtool-darwin
[23/434] LINK ./bin/llvm-xray
[24/434] LINK ./bin/llvm-rtdyld
[25/434] LINK obj/clang/unittests/DependencyScanning/ClangDependencyScanningTests
[26/434] LINK obj/llvm/unittests/MC/MCTests
[27/434] LINK obj/llvm/unittests/ExecutionEngine/JITLink/JITLinkTests
[28/434] LINK obj/llvm/unittests/Target/AArch64/AArch64Tests
[29/434] LINK obj/llvm/unittests/tools/llvm-exegesis/Mips/LLVMExegesisMipsTests
[30/434] LINK ./bin/llvm-ml
[31/434] LINK obj/llvm/unittests/Target/RISCV/RISCVTests
[32/434] LINK obj/llvm/unittests/tools/llvm-exegesis/PowerPC/LLVMExegesisPowerPCTests
[33/434] LINK obj/llvm/unittests/tools/llvm-exegesis/LLVMExegesisTests
[34/434] LINK obj/llvm/unittests/DebugInfo/GSYM/DebugInfoGSYMTests
[35/434] LINK obj/llvm/unittests/tools/llvm-exegesis/X86/LLVMExegesisX86Tests
[36/434] LINK ./bin/llvm-ar
[37/434] LINK obj/llvm/unittests/Passes/PassBuilderBindings/PassesBindingsTests
[38/434] LINK obj/llvm/unittests/Target/AMDGPU/AMDGPUTests
[39/434] LINK ./bin/llvm-jitlink
[40/434] LINK ./bin/lli
[41/434] LINK obj/llvm/unittests/MC/AMDGPU/AMDGPUMCTests
[42/434] LINK obj/llvm/unittests/ExecutionEngine/Orc/OrcJITTests
[43/434] LINK obj/llvm/unittests/tools/llvm-exegesis/RISCV/LLVMExegesisRISCVTests
[44/434] LINK obj/bolt/unittests/Core/CoreTests
[45/434] LINK obj/llvm/unittests/tools/llvm-exegesis/AArch64/LLVMExegesisAArch64Tests
[46/434] LINK ./bin/llvm-exegesis
[47/434] LINK ./bin/llvm-isel-fuzzer
[48/434] LINK ./bin/llvm-bolt-heatmap
[49/434] LINK ./bin/llc
[50/434] LINK ./bin/clang-linker-wrapper
[51/434] LINK ./bin/llvm-opt-fuzzer
[52/434] LINK obj/bolt/unittests/Passes/PassTests
[53/434] LINK ./bin/llvm-gsymutil
[54/434] LINK ./bin/llvm-bolt
[55/434] LINK ./bin/llvm-ir2vec
[56/434] LINK ./bin/clang-query
[57/434] LINK obj/llvm/unittests/CodeGen/GlobalISel/GlobalISelTests
[58/434] LINK ./bin/llvm-split
[59/434] LINK ./bin/llvm-c-test
[60/434] LINK ./bin/clang-sycl-linker
[61/434] LINK ./bin/llvm-dwarfutil
[62/434] LINK ./bin/clang-nvlink-wrapper
[63/434] LINK obj/llvm/unittests/MI/MITests
[64/434] LINK ./bin/llvm-lto2
[65/434] SOLINK ./lib/libLTO.so
[66/434] LINK obj/llvm/unittests/DebugInfo/LogicalView/DebugInfoLogicalViewTests
[67/434] LINK obj/llvm/unittests/MIR/MIRTests
[68/434] LINK ./bin/llvm-reduce
[69/434] LINK ./bin/opt
[70/434] LINK ./bin/dsymutil
[71/434] LINK ./bin/llvm-dwp
[72/434] LINK ./bin/llvm-lto
[73/434] LINK obj/llvm/unittests/CodeGen/CodeGenTests
[74/434] LINK obj/llvm/unittests/Target/TargetMachineCTests
[75/434] LINK obj/clang/unittests/Driver/ClangDriverTests
[76/434] LINK obj/llvm/unittests/DebugInfo/DWARF/DebugInfoDWARFTests
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.