ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/647] AR lib/libLLVMCoroutines.a
[2/647] AR lib/libLLVMNVPTXCodeGen.a
[3/647] AR lib/libLLVMARMCodeGen.a
[4/647] AR lib/libLLVMPasses.a
[5/647] AR lib/libLLVMLTO.a
[6/647] AR lib/libLLVMRISCVCodeGen.a
[7/647] AR lib/libLLVMDTLTO.a
[8/647] AR lib/libLLVMHexagonCodeGen.a
[9/647] AR lib/libLLVMAArch64CodeGen.a
[10/647] AR lib/libLLVMOrcJIT.a
[11/647] AR lib/libLLVMOrcDebugging.a
[12/647] AR lib/libLLVMExegesis.a
[13/647] 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'
[14/647] AR lib/libclangCodeGen.a
[15/647] LINK ./bin/llvm-link
[16/647] LINK ./bin/lli-child-target
[17/647] LINK obj/llvm/unittests/Transforms/IPO/IPOTests
[18/647] LINK obj/llvm/unittests/ExecutionEngine/ExecutionEngineTests
[19/647] LINK obj/llvm/unittests/Target/ARM/ARMTests
[20/647] LINK obj/llvm/unittests/Frontend/LLVMFrontendTests
[21/647] LINK obj/llvm/unittests/Target/AArch64/AArch64Tests
[22/647] LINK obj/llvm/unittests/tools/llvm-exegesis/LLVMExegesisTests
[23/647] LINK obj/llvm/unittests/Target/RISCV/RISCVTests
[24/647] LINK obj/llvm/unittests/Passes/Plugins/PluginsTests
[25/647] LINK obj/llvm/unittests/Transforms/Utils/UtilsTests
[26/647] LINK obj/llvm/unittests/Transforms/Instrumentation/InstrumentationTests
[27/647] LINK ./bin/llvm-extract
[28/647] LINK obj/llvm/unittests/Transforms/Coroutines/CoroTests
[29/647] LINK obj/llvm/unittests/IR/IRTests
[30/647] LINK obj/llvm/unittests/tools/llvm-exegesis/PowerPC/LLVMExegesisPowerPCTests
[31/647] LINK obj/llvm/unittests/Target/X86/X86Tests
[32/647] LINK ./bin/lli
[33/647] LINK obj/llvm/unittests/tools/llvm-exegesis/Mips/LLVMExegesisMipsTests
[34/647] LINK obj/llvm/unittests/Transforms/Scalar/ScalarTests
[35/647] LINK obj/llvm/unittests/ExecutionEngine/Orc/OrcJITTests
[36/647] LINK obj/llvm/unittests/Analysis/AnalysisTests
[37/647] LINK obj/llvm/unittests/ExecutionEngine/MCJIT/MCJITTests
[38/647] LINK obj/llvm/unittests/tools/llvm-exegesis/RISCV/LLVMExegesisRISCVTests
[39/647] LINK obj/llvm/unittests/tools/llvm-exegesis/X86/LLVMExegesisX86Tests
[40/647] LINK obj/llvm/unittests/tools/llvm-exegesis/AArch64/LLVMExegesisAArch64Tests
[41/647] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenMCPseudoLowering(//llvm/utils/gn/build/toolchain:unix)
[42/647] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenSDNodeInfo(//llvm/utils/gn/build/toolchain:unix)
[43/646] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenRegBankGICombiner(//llvm/utils/gn/build/toolchain:unix)
[44/646] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenPreLegalizeGICombiner(//llvm/utils/gn/build/toolchain:unix)
[45/646] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenPostLegalizeGICombiner(//llvm/utils/gn/build/toolchain:unix)
[46/646] ACTION //llvm/lib/Target/AMDGPU/MCTargetDesc:AMDGPUGenMCCodeEmitter(//llvm/utils/gn/build/toolchain:unix)
[47/646] ACTION //llvm/lib/Target/AMDGPU/MCTargetDesc:AMDGPUGenSubtargetInfo(//llvm/utils/gn/build/toolchain:unix)
[48/646] ACTION //llvm/lib/Target/AMDGPU/Disassembler:AMDGPUGenDisassemblerTables(//llvm/utils/gn/build/toolchain:unix)
[49/646] ACTION //llvm/lib/Target/AMDGPU/Utils:AMDGPUGenSearchableTables(//llvm/utils/gn/build/toolchain:unix)
[50/646] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenCallingConv(//llvm/utils/gn/build/toolchain:unix)
[51/646] ACTION //llvm/lib/Target/AMDGPU/MCTargetDesc:AMDGPUGenAsmWriter(//llvm/utils/gn/build/toolchain:unix)
[52/646] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenDAGISel(//llvm/utils/gn/build/toolchain:unix)
[53/646] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenGlobalISel(//llvm/utils/gn/build/toolchain:unix)
[54/646] ACTION //llvm/lib/Target/AMDGPU/MCTargetDesc:AMDGPUGenInstrInfo(//llvm/utils/gn/build/toolchain:unix)
[55/646] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenAsmMatcher(//llvm/utils/gn/build/toolchain:unix)
[56/646] ACTION //llvm/lib/Target/AMDGPU/AsmParser:AMDGPUGenAsmMatcher(//llvm/utils/gn/build/toolchain:unix)
[57/646] ACTION //llvm/lib/Target/AMDGPU:AMDGPUGenRegisterBank(//llvm/utils/gn/build/toolchain:unix)
[58/646] ACTION //llvm/lib/Target/AMDGPU/MCTargetDesc:AMDGPUGenRegisterInfo(//llvm/utils/gn/build/toolchain:unix)
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.