Crashes in clang::ASTReader usually mean "clear your module cache". That does mean there's a bug, though, that we're not putting the revision numbers into the module hash. Mind filing an SR to track that, since I thought we were?
Jordan > On Aug 30, 2017, at 13:30, David Zarzycki via swift-dev <swift-dev@swift.org> > wrote: > > Anybody else seeing top-of-tree (af34e394e7) fail to build? I’m on macOS > 17A358a with Xcode 9M214v (beta 6) and building like so: > > ./utils/build-script --build-subdir="$(dirname $PWD)/t" > --llvm-targets-to-build X86 --skip-ios --skip-tvos --skip-watchos -r > > The build crash is below. Any ideas? > > > swiftc -c -sdk > /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk > -target x86_64-apple-macosx10.9 -F > /Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/../../../Developer/Library/Frameworks > -O -no-link-objc-runtime -force-single-frontend-invocation -parse-as-library > -module-name DriverUtils -emit-module -emit-module-path > /Volumes/data/wt/master/t/swift-macosx-x86_64/benchmark/O-x86_64-apple-macosx10.9/DriverUtils.swiftmodule > -o > /Volumes/data/wt/master/t/swift-macosx-x86_64/benchmark/O-x86_64-apple-macosx10.9/DriverUtils.o > /Volumes/data/wt/master/swift/benchmark/utils/DriverUtils.swift > /Volumes/data/wt/master/swift/benchmark/utils/ArgParse.swift > Assertion failed: (idx < size()), function operator[], file > /Volumes/data/wt/master/llvm/include/llvm/ADT/SmallVector.h, line 153. > 0 swift 0x00000001102a0a38 > llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40 > 1 swift 0x000000011029f986 llvm::sys::RunSignalHandlers() > + 86 > 2 swift 0x00000001102a0ffe SignalHandler(int) + 366 > 3 libsystem_platform.dylib 0x00007fff59b53f5a _sigtramp + 26 > 4 libsystem_platform.dylib 0x00000001140f9588 _sigtramp + 3126482504 > 5 libsystem_c.dylib 0x00007fff5997f32a abort + 127 > 6 libsystem_c.dylib 0x00007fff59947380 basename_r + 0 > 7 swift 0x000000010f7adb4a > clang::ASTReader::ReadString(llvm::SmallVector<unsigned long long, 64u> > const&, unsigned int&) + 682 > 8 swift 0x000000010f79fc0e > clang::ASTReader::ParseLanguageOptions(llvm::SmallVector<unsigned long long, > 64u> const&, bool, clang::ASTReaderListener&, bool) + 12110 > 9 swift 0x000000010f79cbda > clang::ASTReader::ReadOptionsBlock(llvm::BitstreamCursor&, unsigned int, > bool, clang::ASTReaderListener&, std::__1::basic_string<char, > std::__1::char_traits<char>, std::__1::allocator<char> >&) + 250 > 10 swift 0x000000010f7a1628 > clang::ASTReader::ReadControlBlock(clang::serialization::ModuleFile&, > llvm::SmallVectorImpl<clang::ASTReader::ImportedModule>&, > clang::serialization::ModuleFile const*, unsigned int) + 1048 > 11 swift 0x000000010f7a371d > clang::ASTReader::ReadASTCore(llvm::StringRef, > clang::serialization::ModuleKind, clang::SourceLocation, > clang::serialization::ModuleFile*, > llvm::SmallVectorImpl<clang::ASTReader::ImportedModule>&, long long, long, > clang::ASTFileSignature, unsigned int) + 2253 > 12 swift 0x000000010f7af1a8 > clang::ASTReader::ReadAST(llvm::StringRef, clang::serialization::ModuleKind, > clang::SourceLocation, unsigned int, > llvm::SmallVectorImpl<clang::ASTReader::ImportedSubmodule>*) + 296 > 13 swift 0x000000010f51633e > clang::CompilerInstance::loadModule(clang::SourceLocation, > llvm::ArrayRef<std::__1::pair<clang::IdentifierInfo*, clang::SourceLocation> > >, clang::Module::NameVisibilityKind, bool) + 1886 > 14 swift 0x000000010e30d9a0 > swift::ClangImporter::loadModule(swift::SourceLoc, > llvm::ArrayRef<std::__1::pair<swift::Identifier, swift::SourceLoc> > >)::$_4::operator()(llvm::ArrayRef<std::__1::pair<clang::IdentifierInfo*, > clang::SourceLocation> >, bool) const + 640 > 15 swift 0x000000010e30d58e > swift::ClangImporter::loadModule(swift::SourceLoc, > llvm::ArrayRef<std::__1::pair<swift::Identifier, swift::SourceLoc> >) + 462 > 16 swift 0x000000010e3df8a3 > swift::ASTContext::getModule(llvm::ArrayRef<std::__1::pair<swift::Identifier, > swift::SourceLoc> >) + 115 > 17 swift 0x000000010e25b13a > swift::ModuleFile::getModule(llvm::ArrayRef<swift::Identifier>) + 330 > 18 swift 0x000000010e28900b > swift::ModuleFile::associateWithFileContext(swift::FileUnit*, > swift::SourceLoc) + 1579 > 19 swift 0x000000010e2e0785 > swift::SerializedModuleLoader::loadAST(swift::ModuleDecl&, > llvm::Optional<swift::SourceLoc>, std::__1::unique_ptr<llvm::MemoryBuffer, > std::__1::default_delete<llvm::MemoryBuffer> >, > std::__1::unique_ptr<llvm::MemoryBuffer, > std::__1::default_delete<llvm::MemoryBuffer> >, bool) + 629 > 20 swift 0x000000010e2e2e32 > swift::SerializedModuleLoader::loadModule(swift::SourceLoc, > llvm::ArrayRef<std::__1::pair<swift::Identifier, swift::SourceLoc> >) + 466 > 21 swift 0x000000010e3df8a3 > swift::ASTContext::getModule(llvm::ArrayRef<std::__1::pair<swift::Identifier, > swift::SourceLoc> >) + 115 > 22 swift 0x000000010e3df95f > swift::ASTContext::getStdlibModule(bool) + 63 > 23 swift 0x000000010deef7e6 > swift::CompilerInstance::performSema() + 454 > 24 swift 0x000000010d47014c > performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, > llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, > swift::UnifiedStatsReporter*) + 1740 > 25 swift 0x000000010d46eb70 > swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, > swift::FrontendObserver*) + 3408 > 26 swift 0x000000010d42fc30 main + 3184 > 27 libdyld.dylib 0x00007fff598d3145 start + 1 > 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