10 libswiftCore.dylib 0x0000000109f2a187 _T0s8SequencePsE6reduceqd__qd___qd__qd___7ElementQztKctKlF + 4259846807 11 swift 0x0000000103606c0a llvm::MCJIT::runFunction(llvm::Function*, llvm::ArrayRef<llvm::GenericValue>) + 362 12 swift 0x000000010360d30c llvm::ExecutionEngine::runFunctionAsMain(llvm::Function*, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, char const* const*) + 1004 13 swift 0x0000000102928735 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 48709 14 swift 0x000000010291ae64 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 7908 15 swift 0x00000001028cf8b5 main + 18917 16 libdyld.dylib 0x00007fff5508a015 start + 1 17 libdyld.dylib 0x000000000000000a start + 2868338678 Stack dump: 0. Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -interpret a.swift -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk -color-diagnostics -module-name a Segmentation fault: 11