INFO:2026-03-04T16:25:37Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   8f8590e691fe..4b3a9246a086  main       -> origin/main
Switched to branch 'main'
Your branch is behind 'origin/main' by 1 commit, and can be fast-forwarded.
  (use "git pull" to update your local branch)
HEAD is now at 4b3a9246a086 [bazel] Fix more parse_headers cases in lldb (#184534)
INFO:2026-03-04T16:25:41Z:root:syncing...
Deleted branch merge (was 8f8590e691fe).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2026-03-04T16:25:41Z:root:building
ninja: Entering directory `out/gn'
[1/305] AR lib/libclangDriver.a
[2/305] 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'
[3/305] LINK ./bin/clang-offload-bundler
[4/305] LINK obj/clang/unittests/DependencyScanning/ClangDependencyScanningTests
[5/305] LINK ./bin/diagtool
[6/305] LINK ./bin/clang-diff
[7/305] LINK obj/clang/unittests/ASTMatchers/Dynamic/DynamicASTMatchersTests
[8/305] LINK obj/clang/unittests/Tooling/Syntax/SyntaxTests
[9/305] LINK obj/clang-tools-extra/unittests/clang-change-namespace/ClangChangeNamespaceTests
[10/305] LINK obj/clang-tools-extra/unittests/clang-include-fixer/find-all-symbols/FindAllSymbolsTests
[11/305] LINK ./bin/clang-change-namespace
[12/305] LINK ./bin/clang-refactor
[13/305] LINK obj/clang-tools-extra/unittests/clang-query/ClangQueryTests
[14/305] LINK ./bin/modularize
[15/305] LINK obj/clang-tools-extra/unittests/clang-doc/ClangDocTests
[16/305] LINK ./bin/clang-move
[17/305] LINK ./bin/clang-doc
[18/305] LINK obj/clang/unittests/Analysis/ClangAnalysisTests
[19/305] LINK ./bin/pp-trace
[20/305] LINK ./bin/clang-installapi
[21/305] LINK obj/clang/unittests/Index/IndexTests
[22/305] LINK obj/clang/unittests/AST/ByteCode/InterpTests
[23/305] LINK obj/clang/unittests/Sema/SemaTests
[24/305] LINK ./bin/clang-scan-deps
[25/305] LINK ./bin/clang-query
[26/305] LINK ./bin/lldb-server
[27/305] LINK obj/clang/unittests/ASTMatchers/ASTMatchersTests
[28/305] LINK ./bin/clang-reorder-fields
[29/305] LINK obj/clang-tools-extra/unittests/clang-move/ClangMoveTests
[30/305] LINK ./bin/clang-include-fixer
[31/305] LINK ./bin/clang-import-test
[32/305] LINK ./bin/dexp
[33/305] LINK obj/clang/unittests/StaticAnalyzer/StaticAnalysisTests
[34/305] LINK obj/clang/unittests/Serialization/SerializationTests
[35/305] LINK obj/clang-tools-extra/unittests/clang-include-fixer/ClangIncludeFixerTests
[36/305] LINK ./bin/clang-extdef-mapping
[37/305] LINK obj/clang/unittests/Analysis/FlowSensitive/ClangAnalysisFlowSensitiveTests
[38/305] LINK ./bin/find-all-symbols
[39/305] LINK obj/clang/unittests/AST/ASTTests
[40/305] LINK obj/clang/unittests/Analysis/Scalable/ClangScalableAnalysisTests
[41/305] LINK obj/clang/unittests/CrossTU/CrossTUTests
[42/305] LINK obj/clang-tools-extra/unittests/clang-tidy/ClangTidyTests
[43/305] LINK obj/clang/unittests/Rewrite/RewriteTests
[44/305] LINK ./bin/clangd-indexer
[45/305] LINK ./bin/clangd
[46/305] LINK ./bin/clang-tidy
[47/305] LINK obj/clang/unittests/Interpreter/ExceptionTests/ClangReplInterpreterExceptionTests
[48/305] LINK obj/clang/unittests/Driver/ClangDriverTests
[49/305] LINK obj/clang/unittests/Frontend/FrontendTests
[50/305] LINK obj/clang-tools-extra/clangd/unittests/ClangdTests
[51/305] LINK obj/clang/unittests/Tooling/ToolingTests
[52/305] SOLINK ./lib/libclang.so
[53/305] LINK ./bin/clang-check
[54/305] LINK obj/clang/unittests/Interpreter/ClangReplInterpreterTests
[55/305] LINK ./bin/lldb-test
[56/305] LINK ./bin/lldb-dap
[57/305] LINK ./bin/clang-repl
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.