ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/359] AR lib/libclangIncludeFixer.a
[2/359] AR lib/libclangMove.a
[3/359] AR lib/libclangTidy.a
[4/359] AR lib/libclangChangeNamespace.a
[5/359] AR lib/libclangFrontendTool.a
[6/359] AR lib/libclangInterpreter.a
[7/359] ACTION //bolt/tools/driver:llvm-boltdiff(//llvm/utils/gn/build/toolchain:unix)
[8/359] ACTION //bolt/tools/driver:perf2bolt(//llvm/utils/gn/build/toolchain:unix)
[9/359] ACTION //llvm/tools/llvm-ml:llvm-ml64(//llvm/utils/gn/build/toolchain:unix)
[10/359] AR lib/libclangTidyUtils.a
[11/359] AR lib/liblldbPluginExpressionParserClang.a
[12/359] ACTION //llvm/tools/llvm-ar:llvm-ranlib(//llvm/utils/gn/build/toolchain:unix)
[13/359] ACTION //llvm/tools/llvm-ar:llvm-dlltool(//llvm/utils/gn/build/toolchain:unix)
[14/359] AR lib/libclangTidyCustomModule.a
[15/359] ACTION //llvm/tools/llvm-ar:llvm-lib(//llvm/utils/gn/build/toolchain:unix)
[16/359] AR lib/libclangTidyBoostModule.a
[17/359] AR lib/libclangTidyLLVMLibcModule.a
[18/359] AR lib/libclangTidyAlteraModule.a
[19/359] AR lib/libclangTidyDarwinModule.a
[20/359] AR lib/libclangTidyConcurrencyModule.a
[21/359] AR lib/libclangTidyLinuxKernelModule.a
[22/359] AR lib/libclangTidyZirconModule.a
[23/359] AR lib/libclangTidyMPIModule.a
[24/359] AR lib/libclangTidyObjCModule.a
[25/359] AR lib/libclangTidyOpenMPModule.a
[26/359] AR lib/libclangTidyAndroidModule.a
[27/359] AR lib/libclangTidyPortabilityModule.a
[28/359] AR lib/liblldbPluginAppleObjCRuntime.a
[29/359] AR lib/libclangTidyAbseilModule.a
[30/359] AR lib/libclangTidyMiscModule.a
[31/359] AR lib/libclangTidyPerformanceModule.a
[32/359] AR lib/liblldbPluginObjCLanguage.a
[33/359] 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'
[34/359] AR lib/liblldbPluginSymbolFileDWARF.a
[35/359] AR lib/libclangTidyReadabilityModule.a
[36/359] LINK obj/clang/unittests/Rewrite/RewriteTests
[37/359] LINK obj/clang/unittests/Sema/SemaTests
[38/359] LINK obj/clang/unittests/Tooling/Syntax/SyntaxTests
[39/359] LINK ./bin/clang-doc
[40/359] LINK obj/clang/unittests/Serialization/SerializationTests
[41/359] LINK ./bin/clang-installapi
[42/359] LINK obj/clang/unittests/Analysis/ClangAnalysisTests
[43/359] LINK ./bin/clang-reorder-fields
[44/359] LINK ./bin/clang-scan-deps
[45/359] LINK ./bin/clang-include-fixer
[46/359] LINK ./bin/modularize
[47/359] LINK obj/clang/unittests/CrossTU/CrossTUTests
[48/359] LINK obj/clang-tools-extra/unittests/clang-include-fixer/find-all-symbols/FindAllSymbolsTests
[49/359] LINK ./bin/clang-refactor
[50/359] LINK obj/clang-tools-extra/unittests/clang-move/ClangMoveTests
[51/359] LINK obj/clang-tools-extra/unittests/clang-query/ClangQueryTests
[52/359] LINK obj/clang/unittests/Analysis/Scalable/ClangScalableAnalysisTests
[53/359] LINK obj/clang/unittests/ASTMatchers/Dynamic/DynamicASTMatchersTests
[54/359] LINK ./bin/clang-diff
[55/359] LINK obj/clang-tools-extra/unittests/clang-doc/ClangDocTests
[56/359] LINK obj/clang-tools-extra/unittests/clang-change-namespace/ClangChangeNamespaceTests
[57/359] LINK ./bin/clang-extdef-mapping
[58/359] LINK ./bin/pp-trace
[59/359] LINK obj/clang/unittests/CodeGen/ClangCodeGenTests
[60/359] LINK obj/clang-tools-extra/unittests/clang-include-fixer/ClangIncludeFixerTests
[61/359] LINK obj/clang/unittests/AST/ByteCode/InterpTests
[62/359] LINK obj/clang/unittests/ASTMatchers/ASTMatchersTests
[63/359] LINK obj/clang/unittests/Index/IndexTests
[64/359] LINK ./bin/clang-change-namespace
[65/359] LINK ./bin/find-all-symbols
[66/359] LINK obj/lld/unittests/AsLibELF/LLDAsLibELFTests
[67/359] LINK obj/clang/unittests/Analysis/FlowSensitive/ClangAnalysisFlowSensitiveTests
[68/359] LINK ./bin/clang-move
[69/359] LINK ./bin/lld
[70/359] LINK obj/clang/unittests/StaticAnalyzer/StaticAnalysisTests
[71/359] LINK obj/clang/unittests/AST/ASTTests
[72/359] LINK ./bin/clang-import-test
[73/359] LINK obj/lld/unittests/AsLibAll/LLDAsLibAllTests
[74/359] LINK obj/clang/unittests/Frontend/FrontendTests
[75/359] LINK obj/clang/unittests/Interpreter/ExceptionTests/ClangReplInterpreterExceptionTests
[76/359] LINK obj/clang/unittests/Tooling/ToolingTests
[77/359] SOLINK ./lib/libclang.so
[78/359] LINK ./bin/clang
[79/359] LINK ./bin/clang-check
[80/359] LINK obj/clang/unittests/Interpreter/ClangReplInterpreterTests
[81/359] LINK ./bin/clang-repl
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.