ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/375] COPY ../../libcxxabi/include/__cxxabi_config.h include/c++/v1/__cxxabi_config.h
[2/375] COPY ../../libcxxabi/include/cxxabi.h include/c++/v1/cxxabi.h
[3/375] LINK obj/clang-tools-extra/unittests/clang-doc/ClangDocTests
FAILED: obj/clang-tools-extra/unittests/clang-doc/ClangDocTests 
../../../chrome/src/third_party/llvm-build/Release+Asserts/bin/clang++ -Wl,--color-diagnostics -fuse-ld=lld -o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests -Wl,--start-group obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.BitcodeTest.o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.ClangDocTest.o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.GeneratorTest.o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.HTMLGeneratorTest.o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.JSONGeneratorTest.o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MDGeneratorTest.o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MergeTest.o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.SerializeTest.o obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.YAMLGeneratorTest.o obj/third-party/unittest/UnitTestMain/UnitTestMain.TestMain.o lib/libclangDoc.a lib/libclangAST.a lib/libclangASTMatchers.a lib/libclangBasic.a lib/libclangFormat.a lib/libclangFrontend.a lib/libclangRewrite.a lib/libclangSerialization.a lib/libclangTooling.a lib/libclangToolingCore.a lib/libLLVMBitReader.a lib/libLLVMBitWriter.a lib/libLLVMSupport.a lib/libLLVMTestingSupport.a lib/libclangDocSupport.a lib/libLLVMSupportBlake3.a lib/libLLVMDemangle.a lib/libLLVMOption.a lib/libLLVMTargetParser.a lib/libclangLex.a lib/libLLVMBinaryFormat.a lib/libLLVMFrontendHLSL.a lib/libLLVMCore.a lib/libLLVMRemarks.a lib/libLLVMBitstreamReader.a lib/libLLVMFrontendOpenMP.a lib/libLLVMAnalysis.a lib/libLLVMProfileData.a lib/libLLVMDebugInfoDWARF.a lib/libLLVMDebugInfoDWARFLowLevel.a lib/libLLVMMC.a lib/libLLVMDebugInfoCodeView.a lib/libLLVMDebugInfoMSF.a lib/libLLVMObject.a lib/libLLVMIRReader.a lib/libLLVMAsmParser.a lib/libLLVMMCParser.a lib/libLLVMTextAPI.a lib/libLLVMSymbolize.a lib/libLLVMDebugInfoBTF.a lib/libLLVMDebugInfoGSYM.a lib/libLLVMDebugInfoPDB.a lib/libLLVMFrontendAtomic.a lib/libLLVMFrontendDirective.a lib/libLLVMFrontendOffloading.a lib/libLLVMObjectYAML.a lib/libLLVMTransformUtils.a lib/libLLVMScalarOpts.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libclangAnalysis.a lib/libclangAnalysisLifetimeSafety.a lib/libclangAPINotes.a lib/libclangEdit.a lib/libclangOptions.a lib/libclangParse.a lib/libclangSema.a lib/libclangSupport.a lib/libLLVMFrontendOpenACC.a lib/libLLVMPlugins.a lib/libclangToolingDependencyScanning.a lib/libclangDriver.a lib/libclangScalableStaticAnalysisAnalyses.a lib/libclangScalableStaticAnalysisCore.a lib/libclangUnifiedSymbolResolution.a lib/libclangScalableStaticAnalysisFrontend.a lib/libclangScalableStaticAnalysisSourceTransformation.a lib/libLLVMWindowsDriver.a lib/libclangToolingInclusions.a lib/libgtest.a -Wl,--end-group -ldl -lpthread -lz
ld.lld: error: undefined symbol: vtable for clang::doc::markdown::HeadingNode
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_HeadingNode_Test::TestBody())
>>> the vtable symbol may be undefined because the class is missing its key function (see https://lld.llvm.org/missingkeyfunction)

ld.lld: error: undefined symbol: vtable for clang::doc::markdown::EmphasisNode
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_EmphasisNode_Test::TestBody())
>>> the vtable symbol may be undefined because the class is missing its key function (see https://lld.llvm.org/missingkeyfunction)

ld.lld: error: undefined symbol: vtable for clang::doc::markdown::TextNode
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_EmphasisNode_Test::TestBody())
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_ParagraphWithChildren_Test::TestBody())
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_UnorderedListWithItems_Test::TestBody())
>>> the vtable symbol may be undefined because the class is missing its key function (see https://lld.llvm.org/missingkeyfunction)

ld.lld: error: undefined symbol: vtable for clang::doc::markdown::UnorderedListNode
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_UnorderedListNode_Test::TestBody())
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_UnorderedListWithItems_Test::TestBody())
>>> the vtable symbol may be undefined because the class is missing its key function (see https://lld.llvm.org/missingkeyfunction)

ld.lld: error: undefined symbol: vtable for clang::doc::markdown::ParagraphNode
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_ParagraphNode_Test::TestBody())
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_ParagraphWithChildren_Test::TestBody())
>>> the vtable symbol may be undefined because the class is missing its key function (see https://lld.llvm.org/missingkeyfunction)

ld.lld: error: undefined symbol: vtable for clang::doc::markdown::DocumentNode
>>> referenced by MarkdownParserTest.cpp
>>>               obj/clang-tools-extra/unittests/clang-doc/ClangDocTests.MarkdownParserTest.o:((anonymous namespace)::MarkdownNodeTest_DocumentNode_Test::TestBody())
>>> the vtable symbol may be undefined because the class is missing its key function (see https://lld.llvm.org/missingkeyfunction)
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
[4/375] ACTION //libcxx/include:copy_headers(//llvm/utils/gn/build/toolchain:unix)
[5/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMBranchTargets.o
[6/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.MLxExpansionPass.o
[7/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMFixCortexA57AES1742098Pass.o
[8/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMBasicBlockInfo.o
[9/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.MVEVPTBlockPass.o
[10/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMLegalizerInfo.o
[11/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMLatencyMutations.o
[12/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMMachineFunctionInfo.o
[13/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMCallLowering.o
[14/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMMCInstLower.o
[15/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.MVEGatherScatterLowering.o
[16/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMSLSHardening.o
[17/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMSelectionDAGInfo.o
[18/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.Thumb2ITBlockPass.o
[19/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMHazardRecognizer.o
[20/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMMacroFusion.o
[21/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMInstrInfo.o
[22/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMTargetObjectFile.o
[23/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.Thumb2SizeReduction.o
[24/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ThumbRegisterInfo.o
[25/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMBaseRegisterInfo.o
[26/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMRegisterBankInfo.o
[27/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMCallingConv.o
[28/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMBlockPlacement.o
[29/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.Thumb1InstrInfo.o
[30/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.A15SDOptimizer.o
[31/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMConstantIslandPass.o
[32/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.Thumb2InstrInfo.o
[33/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.MVELaneInterleavingPass.o
[34/375] CXX obj/llvm/unittests/Target/ARM/ARMTests.MachineInstrTest.o
[35/375] CXX obj/llvm/unittests/Target/ARM/ARMTests.InstSizes.o
[36/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.Thumb1FrameLowering.o
[37/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.MVETPAndVPTOptimisationsPass.o
[38/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMExpandPseudoInsts.o
[39/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMSubtarget.o
[40/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMAsmPrinter.o
[41/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMInstructionSelector.o
[42/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMLowOverheadLoops.o
[43/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.MVETailPredication.o
[44/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMFastISel.o
[45/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMParallelDSP.o
[46/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMISelDAGToDAG.o
[47/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMFrameLowering.o
[48/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMLoadStoreOptimizer.o
[49/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMBaseInstrInfo.o
[50/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMTargetMachine.o
[51/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMTargetTransformInfo.o
[52/375] CXX obj/llvm/lib/Target/ARM/LLVMARMCodeGen.ARMISelLowering.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.