ninja: Entering directory `out/gn'
[1/385] ACTION //bolt/tools/driver:llvm-boltdiff(//llvm/utils/gn/build/toolchain:unix)
[2/385] ACTION //bolt/tools/driver:perf2bolt(//llvm/utils/gn/build/toolchain:unix)
[3/385] ACTION //llvm/tools/llvm-ml:llvm-ml64(//llvm/utils/gn/build/toolchain:unix)
[4/385] 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'
[5/385] LINK obj/llvm/unittests/MC/SystemZ/SystemZAsmLexerTests
[6/385] LINK obj/llvm/unittests/MC/X86/X86MCTests
[7/385] LINK ./bin/llvm-cxxmap
[8/385] LINK obj/llvm/unittests/CGData/CodeGenDataTests
[9/385] LINK ./bin/llvm-cxxdump
[10/385] LINK ./bin/llvm-cfi-verify
[11/385] LINK ./bin/sancov
[12/385] LINK ./bin/llvm-debuginfo-analyzer
[13/385] LINK obj/llvm/unittests/DebugInfo/GSYM/DebugInfoGSYMTests
[14/385] LINK ./bin/llvm-ar
[15/385] LINK ./bin/llvm-objdump
[16/385] LINK ./bin/llvm-xray
[17/385] LINK obj/llvm/unittests/ExecutionEngine/JITLink/JITLinkTests
[18/385] LINK obj/llvm/unittests/Target/PowerPC/PowerPCTests
[19/385] LINK obj/llvm/unittests/tools/llvm-cfi-verify/CFIVerifyTests
[20/385] LINK ./bin/llvm-rtdyld
[21/385] LINK ./bin/llvm-profgen
[22/385] LINK obj/llvm/unittests/Target/LoongArch/LoongArchTests
[23/385] LINK obj/llvm/unittests/Target/ARM/ARMTests
[24/385] LINK ./bin/lli
[25/385] LINK obj/llvm/unittests/Target/WebAssembly/WebAssemblyTests
[26/385] LINK obj/llvm/unittests/MC/MCTests
[27/385] LINK obj/llvm/unittests/tools/llvm-mca/LLVMMCATests
[28/385] LINK obj/llvm/unittests/Target/AArch64/AArch64Tests
[29/385] LINK obj/llvm/unittests/Target/RISCV/RISCVTests
[30/385] LINK obj/llvm/unittests/tools/llvm-exegesis/X86/LLVMExegesisX86Tests
[31/385] LINK obj/llvm/unittests/tools/llvm-exegesis/PowerPC/LLVMExegesisPowerPCTests
[32/385] LINK obj/llvm/unittests/tools/llvm-exegesis/RISCV/LLVMExegesisRISCVTests
[33/385] LINK obj/llvm/unittests/tools/llvm-exegesis/Mips/LLVMExegesisMipsTests
[34/385] LINK obj/llvm/unittests/tools/llvm-exegesis/AArch64/LLVMExegesisAArch64Tests
[35/385] LINK ./bin/llvm-exegesis
[36/385] LINK obj/llvm/unittests/Target/X86/X86Tests
[37/385] LINK obj/llvm/unittests/Passes/PassBuilderBindings/PassesBindingsTests
[38/385] LINK obj/llvm/unittests/Target/AMDGPU/AMDGPUTests
[39/385] LINK obj/llvm/unittests/MC/AMDGPU/AMDGPUMCTests
[40/385] LINK ./bin/llvm-opt-fuzzer
[41/385] LINK obj/llvm/unittests/ExecutionEngine/Orc/OrcJITTests
[42/385] LINK obj/lld/unittests/AsLibELF/LLDAsLibELFTests
[43/385] LINK obj/llvm/unittests/DebugInfo/DWARF/DebugInfoDWARFTests
[44/385] LINK obj/llvm/unittests/ExecutionEngine/MCJIT/MCJITTests
[45/385] LINK ./bin/lld
[46/385] LINK obj/llvm/unittests/MI/MITests
[47/385] LINK obj/llvm/unittests/MIR/MIRTests
[48/385] LINK ./bin/llvm-reduce
[49/385] LINK ./bin/llvm-dwarfutil
[50/385] LINK ./bin/llc
[51/385] SOLINK ./lib/libLTO.so
[52/385] LINK obj/llvm/unittests/CodeGen/CodeGenTests
[53/385] LINK ./bin/dsymutil
[54/385] LINK ./bin/llvm-c-test
[55/385] LINK obj/llvm/unittests/DebugInfo/LogicalView/DebugInfoLogicalViewTests
[56/385] LINK obj/llvm/unittests/CodeGen/GlobalISel/GlobalISelTests
[57/385] LINK obj/lld/unittests/AsLibAll/LLDAsLibAllTests
[58/385] LINK ./bin/llvm-dwp
[59/385] LINK ./bin/llvm-split
[60/385] LINK obj/llvm/unittests/Target/TargetMachineCTests
[61/385] LINK ./bin/opt
[62/385] CXX obj/clang/lib/Sema/Sema.SemaType.o
[63/385] CXX obj/clang/lib/Serialization/Serialization.ASTReaderDecl.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.