ninja: Entering directory `out/gn'
[1/86] SOLINK lib/libc++.so.0
[2/86] ACTION //libcxx/src:cxx_symlink(//llvm/utils/gn/build/toolchain:stage2_unix)
[3/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Atomic.o
[4/86] ACTION //libcxx/src:cxx_linker_script(//llvm/utils/gn/build/toolchain:stage2_unix)
[5/86] 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)
[6/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Errno.o
[7/86] CXX stage2_unix/obj/llvm/lib/Support/Support.ProgramStack.o
[8/86] CXX stage2_unix/obj/llvm/lib/Support/Support.UnicodeNameToCodepointGenerated.o
[9/86] CXX stage2_unix/obj/llvm/lib/Support/Support.xxhash.o
[10/86] CXX stage2_unix/obj/llvm/lib/Support/Support.StringMap.o
[11/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Optional.o
[12/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SystemUtils.o
[13/86] CXX stage2_unix/obj/llvm/lib/Support/Support.RISCVAttributes.o
[14/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Signposts.o
[15/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SuffixTreeNode.o
[16/86] CXX stage2_unix/obj/llvm/lib/Support/Support.raw_os_ostream.o
[17/86] CXX stage2_unix/obj/llvm/lib/Support/Support.raw_ostream_proxy.o
[18/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SmallVector.o
[19/86] CC stage2_unix/obj/llvm/lib/Support/Support.regcomp.o
[20/86] CXX stage2_unix/obj/llvm/lib/Support/Support.RewriteBuffer.o
[21/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SmallPtrSet.o
[22/86] CXX stage2_unix/obj/llvm/lib/Support/Support.RewriteRope.o
[23/86] CXX stage2_unix/obj/llvm/lib/Support/Support.VersionTuple.o
[24/86] CXX stage2_unix/obj/llvm/lib/Support/Support.PrettyStackTrace.o
[25/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SHA1.o
[26/86] CXX stage2_unix/obj/llvm/lib/Support/Support.circular_raw_ostream.o
[27/86] CXX stage2_unix/obj/llvm/lib/Support/Support.RWMutex.o
[28/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SHA256.o
[29/86] CXX stage2_unix/obj/llvm/lib/Support/Support.UnicodeCaseFold.o
[30/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Twine.o
[31/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SipHash.o
[32/86] CXX stage2_unix/obj/llvm/lib/Support/Support.StringExtras.o
[33/86] CXX stage2_unix/obj/llvm/lib/Support/Support.RISCVISAUtils.o
[34/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Unicode.o
[35/86] CXX stage2_unix/obj/llvm/lib/Support/Support.TextEncoding.o
[36/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SlowDynamicAPInt.o
[37/86] CXX stage2_unix/obj/llvm/lib/Support/Support.VirtualOutputError.o
[38/86] CXX stage2_unix/obj/llvm/lib/Support/Support.StringSaver.o
[39/86] CXX stage2_unix/obj/llvm/lib/Support/Support.DynamicLibrary.o
[40/86] CXX stage2_unix/obj/llvm/lib/Support/Support.PluginLoader.o
[41/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Regex.o
[42/86] CXX stage2_unix/obj/llvm/lib/Support/Support.VirtualOutputConfig.o
[43/86] CXX stage2_unix/obj/llvm/lib/Support/Support.ScaledNumber.o
[44/86] CXX stage2_unix/obj/llvm/lib/Support/Support.ToolOutputFile.o
[45/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Z3Solver.o
[46/86] CXX stage2_unix/obj/llvm/lib/Support/Support.RISCVAttributeParser.o
[47/86] CXX stage2_unix/obj/llvm/lib/Support/Support.UnicodeNameToCodepoint.o
[48/86] CXX stage2_unix/obj/llvm/lib/Support/Support.VirtualOutputFile.o
[49/86] CXX stage2_unix/obj/llvm/lib/Support/Support.TrieRawHashMap.o
[50/86] CXX stage2_unix/obj/llvm/lib/Support/Support.VirtualOutputBackend.o
[51/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Win64EH.o
[52/86] CXX stage2_unix/obj/llvm/lib/Support/Support.TarWriter.o
[53/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SuffixTree.o
[54/86] CXX stage2_unix/obj/llvm/lib/Support/Support.PGOOptions.o
[55/86] CXX stage2_unix/obj/llvm/lib/Support/Support.RandomNumberGenerator.o
[56/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Parallel.o
[57/86] CXX stage2_unix/obj/llvm/lib/Support/Support.WithColor.o
[58/86] CXX stage2_unix/obj/llvm/lib/Support/Support.raw_socket_stream.o
[59/86] CXX stage2_unix/obj/llvm/lib/Support/Support.StringRef.o
[60/86] CXX stage2_unix/obj/llvm/lib/Support/Support.raw_ostream.o
[61/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Statistic.o
[62/86] CXX stage2_unix/obj/llvm/lib/Support/Support.Timer.o
[63/86] CXX stage2_unix/obj/llvm/lib/Support/Support.VirtualOutputBackends.o
[64/86] CXX stage2_unix/obj/llvm/lib/Support/Support.ThreadPool.o
[65/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SourceMgr.o
[66/86] CXX stage2_unix/obj/llvm/lib/Support/Support.ScopedPrinter.o
[67/86] CXX stage2_unix/obj/llvm/lib/Support/Support.YAMLTraits.o
[68/86] CXX stage2_unix/obj/llvm/lib/Support/Support.TimeProfiler.o
[69/86] CXX stage2_unix/obj/llvm/lib/Support/Support.YAMLParser.o
[70/86] CXX stage2_unix/obj/llvm/lib/Support/Support.SpecialCaseList.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.