ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/376] AR lib/libLLVMAMDGPUUtils.a
[2/376] AR lib/libLLVMAMDGPUDesc.a
[3/376] AR lib/libLLVMAMDGPUAsmParser.a
[4/376] AR lib/libLLVMAMDGPUTargetMCA.a
[5/376] AR lib/libLLVMAMDGPUDisassembler.a
[6/376] AR lib/libLLVMAMDGPUCodeGen.a
[7/376] 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'
[8/376] LINK ./bin/llvm-dwarfdump
[9/376] LINK ./bin/llvm-mca
[10/376] LINK ./bin/llvm-debuginfo-analyzer
[11/376] LINK ./bin/llvm-objdump
[12/376] LINK ./bin/llvm-cfi-verify
[13/376] LINK obj/llvm/unittests/tools/llvm-cfi-verify/CFIVerifyTests
[14/376] LINK ./bin/sancov
[15/376] LINK ./bin/llvm-nm
[16/376] LINK ./bin/llvm-lipo
[17/376] LINK ./bin/llvm-libtool-darwin
[18/376] LINK obj/clang/unittests/DependencyScanning/ClangDependencyScanningTests
[19/376] LINK ./bin/llvm-ml
[20/376] LINK ./bin/llvm-profgen
[21/376] LINK ./bin/llvm-jitlink
[22/376] LINK obj/clang-tools-extra/unittests/clang-change-namespace/ClangChangeNamespaceTests
[23/376] LINK obj/bolt/unittests/Core/CoreTests
[24/376] LINK ./bin/llvm-bolt-heatmap
[25/376] LINK ./bin/clang-move
[26/376] LINK ./bin/clang-doc
[27/376] LINK ./bin/pp-trace
[28/376] LINK obj/clang/unittests/Serialization/SerializationTests
[29/376] LINK ./bin/clang-refactor
[30/376] LINK ./bin/clang-diff
[31/376] LINK ./bin/llvm-bolt
[32/376] LINK obj/clang/unittests/Sema/SemaTests
[33/376] LINK ./bin/llvm-isel-fuzzer
[34/376] LINK ./bin/clang-query
[35/376] LINK obj/clang/unittests/ASTMatchers/Dynamic/DynamicASTMatchersTests
[36/376] LINK ./bin/clang-change-namespace
[37/376] LINK obj/clang-tools-extra/unittests/clang-include-fixer/find-all-symbols/FindAllSymbolsTests
[38/376] LINK obj/clang-tools-extra/unittests/clang-doc/ClangDocTests
[39/376] LINK obj/clang-tools-extra/unittests/clang-query/ClangQueryTests
[40/376] LINK ./bin/clang-reorder-fields
[41/376] LINK ./bin/clang-include-fixer
[42/376] LINK ./bin/llvm-gsymutil
[43/376] LINK obj/clang-tools-extra/unittests/clang-tidy/ClangTidyTests
[44/376] LINK ./bin/find-all-symbols
[45/376] LINK obj/clang/unittests/ASTMatchers/ASTMatchersTests
[46/376] LINK obj/clang/unittests/AST/ByteCode/InterpTests
[47/376] LINK ./bin/dexp
[48/376] LINK obj/clang-tools-extra/unittests/clang-include-fixer/ClangIncludeFixerTests
[49/376] LINK ./bin/clang-scan-deps
[50/376] LINK obj/clang/unittests/AST/ASTTests
[51/376] LINK ./bin/llvm-lto2
[52/376] LINK ./bin/modularize
[53/376] LINK obj/clang-tools-extra/unittests/clang-move/ClangMoveTests
[54/376] LINK ./bin/clang-tidy
[55/376] LINK ./bin/clang-sycl-linker
[56/376] LINK obj/bolt/unittests/Passes/PassTests
[57/376] LINK ./bin/clang-installapi
[58/376] LINK obj/clang/unittests/CrossTU/CrossTUTests
[59/376] LINK ./bin/clang-extdef-mapping
[60/376] LINK obj/clang/unittests/Analysis/ClangAnalysisTests
[61/376] LINK ./bin/llvm-dwarfutil
[62/376] LINK ./bin/clangd
[63/376] SOLINK ./lib/libclang.so
[64/376] LINK ./bin/llvm-ir2vec
[65/376] LINK ./bin/clang-nvlink-wrapper
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[67/376] LINK ./bin/clang-check
[68/376] LINK ./bin/llvm-split
[69/376] LINK obj/clang-tools-extra/clangd/unittests/ClangdTests
[70/376] LINK ./bin/clangd-indexer
[71/376] LINK ./bin/lldb
[72/376] LINK ./bin/clang-repl
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.