ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/610] ACTION //llvm/tools/llvm-exegesis/lib/RISCV:RISCVGenExegesis(//llvm/utils/gn/build/toolchain:unix)
[2/610] ACTION //llvm/lib/Target/RISCV:RISCVGenMacroFusion(//llvm/utils/gn/build/toolchain:unix)
[3/610] ACTION //llvm/lib/Target/RISCV:RISCVGenSDNodeInfo(//llvm/utils/gn/build/toolchain:unix)
[4/610] ACTION //llvm/lib/Target/RISCV:RISCVGenMCPseudoLowering(//llvm/utils/gn/build/toolchain:unix)
[5/610] ACTION //llvm/include/llvm/TargetParser:RISCVTargetParserDef(//llvm/utils/gn/build/toolchain:unix)
[6/516] AR lib/liblldbPluginExpressionParserClang.a
[7/516] AR lib/liblldbPluginAppleObjCRuntime.a
[8/516] AR lib/liblldbPluginObjCLanguage.a
[9/516] 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'
[10/516] AR lib/liblldbPluginSymbolFileDWARF.a
[11/516] ACTION //llvm/lib/Target/RISCV:RISCVGenRegisterBank(//llvm/utils/gn/build/toolchain:unix)
[12/516] LINK ./bin/lli-child-target
[13/516] ACTION //llvm/lib/Target/RISCV:RISCVGenPostLegalizeGICombiner(//llvm/utils/gn/build/toolchain:unix)
[14/516] ACTION //llvm/lib/Target/RISCV/MCTargetDesc:RISCVGenMCCodeEmitter(//llvm/utils/gn/build/toolchain:unix)
[15/516] ACTION //llvm/lib/Target/RISCV:RISCVGenO0PreLegalizeGICombiner(//llvm/utils/gn/build/toolchain:unix)
[16/516] ACTION //llvm/lib/Target/RISCV:RISCVGenCompressInstEmitter(//llvm/utils/gn/build/toolchain:unix)
[17/516] LINK ./bin/llvm-link
[18/516] LINK obj/llvm/unittests/ExecutionEngine/ExecutionEngineTests
[19/516] LINK obj/llvm/unittests/Transforms/Vectorize/VectorizeTests
[20/516] ACTION //llvm/lib/Target/RISCV:RISCVGenPreLegalizeGICombiner(//llvm/utils/gn/build/toolchain:unix)
[21/516] LINK obj/llvm/unittests/Transforms/Vectorize/SandboxVectorizer/SandboxVectorizerTests
[22/516] ACTION //llvm/lib/Target/RISCV/MCTargetDesc:RISCVGenRegisterInfo(//llvm/utils/gn/build/toolchain:unix)
[23/516] ACTION //llvm/lib/Target/RISCV/Disassembler:RISCVGenDisassemblerTables(//llvm/utils/gn/build/toolchain:unix)
[24/516] LINK obj/llvm/unittests/Transforms/IPO/IPOTests
[25/516] LINK obj/llvm/unittests/Target/ARM/ARMTests
[26/516] LINK ./bin/llvm-extract
[27/516] LINK obj/llvm/unittests/Target/AArch64/AArch64Tests
[28/516] LINK obj/llvm/unittests/Transforms/Coroutines/CoroTests
[29/516] LINK obj/llvm/unittests/Transforms/Scalar/ScalarTests
[30/516] LINK obj/llvm/unittests/Transforms/Instrumentation/InstrumentationTests
[31/516] LINK obj/llvm/unittests/Passes/Plugins/PluginsTests
[32/516] LINK obj/llvm/unittests/ExecutionEngine/MCJIT/MCJITTests
[33/516] LINK obj/llvm/unittests/MC/AMDGPU/AMDGPUMCTests
[34/516] LINK obj/llvm/unittests/Transforms/Utils/UtilsTests
[35/516] LINK obj/llvm/unittests/Target/AMDGPU/AMDGPUTests
[36/516] LINK ./bin/lli
[37/516] LINK obj/llvm/unittests/ExecutionEngine/Orc/OrcJITTests
[38/516] LINK obj/llvm/unittests/Analysis/AnalysisTests
[39/516] LINK obj/llvm/unittests/Frontend/LLVMFrontendTests
[40/516] LINK obj/llvm/unittests/IR/IRTests
[41/516] LINK obj/llvm/unittests/Target/X86/X86Tests
[42/516] ACTION //llvm/lib/Target/RISCV/MCTargetDesc:RISCVGenAsmWriter(//llvm/utils/gn/build/toolchain:unix)
[43/516] ACTION //llvm/lib/Target/RISCV/AsmParser:RISCVGenAsmMatcher(//llvm/utils/gn/build/toolchain:unix)
[44/516] ACTION //llvm/lib/Target/RISCV/MCTargetDesc:RISCVGenSearchableTables(//llvm/utils/gn/build/toolchain:unix)
[45/516] ACTION //llvm/lib/Target/RISCV/MCTargetDesc:RISCVGenSubtargetInfo(//llvm/utils/gn/build/toolchain:unix)
[46/516] ACTION //llvm/lib/Target/RISCV/MCTargetDesc:RISCVGenInstrInfo(//llvm/utils/gn/build/toolchain:unix)
[47/431] ACTION //llvm/lib/Target/RISCV:RISCVGenDAGISel(//llvm/utils/gn/build/toolchain:unix)
[48/430] ACTION //llvm/lib/Target/RISCV:RISCVGenGlobalISel(//llvm/utils/gn/build/toolchain:unix)
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.