Compile failed in Xcode 7.2

[Zhang Zeyang]

Command failed due to signal: Segmentation fault: 11

Here is the detail:
CompileSwift normal arm64 /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchQueue.swift
cd /Users/zzy/Downloads/DispatchKit-master
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchSourceType.swift -primary-file /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchQueue.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchQOSClass.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchGroup.swift /Users/zzy/Downloads/DispatchKit-master/Sources/Bridge.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchDataScale.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchQueueAttr.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchSemaphore.swift /Users/zzy/Downloads/DispatchKit-master/Sources/Dispatch.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchIO.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchTime.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchObject.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchData.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchSource.swift -target arm64-apple-ios7.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.2.sdk -I /Users/zzy/Downloads/DispatchKit-master/Build/Products/Debug-iphoneos -F /Users/zzy/Downloads/DispatchKit-master/Build/Products/Debug-iphoneos -enable-testing -g -module-cache-path /Users/zzy/Downloads/DispatchKit-master/DerivedData/ModuleCache -serialize-debugging-options -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DispatchKit-generated-files.hmap -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DispatchKit-own-target-headers.hmap -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DispatchKit-all-non-framework-target-headers.hmap -Xcc -ivfsoverlay -Xcc /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/all-product-headers.yaml -Xcc -iquote -Xcc /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DispatchKit-project-headers.hmap -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Products/Debug-iphoneos/include -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DerivedSources/arm64 -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -working-directory/Users/zzy/Downloads/DispatchKit-master -emit-module-doc-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueuepartial.swiftdoc -Onone -module-name DispatchKit -emit-module-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueuepartial.swiftmodule -serialize-diagnostics-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueue.dia -emit-dependencies-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueue.d -emit-reference-dependencies-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueue.swiftdeps -o /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueue.o

0 swift 0x0000000111d76fbb llvm::sys::PrintStackTrace(sFILE) + 43
1 swift 0x0000000111d776fb SignalHandler(int) + 379
2 libsystem_platform.dylib 0x00007fff83891eaa sigtramp + 26
3 libsystem_platform.dylib 0x0000000000000003 sigtramp + 2088165747
4 swift 0x000000010ff442ab swift::irgen::emitPolymorphicArguments(swift::irgen::IRGenFunction&, swift::CanTypeWrapperswift::SILFunctionType, swift::CanTypeWrapperswift::SILFunctionType, llvm::ArrayRefswift::Substitution, swift::irgen::WitnessMetadata, swift::irgen::Explosion&) + 587
5 swift 0x000000010ff90eac (anonymous namespace)::IRGenSILFunction::visitFullApplySite(swift::FullApplySite) + 2172
6 swift 0x000000010ff829ad swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction) + 10973
7 swift 0x000000010fee9053 swift::irgen::IRGenModuleDispatcher::emitLazyDefinitions() + 307
8 swift 0x000000010ff6949a performIRGeneration(swift::IRGenOptions&, swift::ModuleDecl, swift::SILModule_, llvm::StringRef, llvm::LLVMContext&, swift::SourceFile_, unsigned int) + 1034
9 swift 0x000000010ff69830 swift::performIRGeneration(swift::IRGenOptions&, swift::SourceFile&, swift::SILModule_, llvm::StringRef, llvm::LLVMContext&, unsigned int) + 64
10 swift 0x000000010fe68265 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef, int&) + 13701
11 swift 0x000000010fe64ad3 frontend_main(llvm::ArrayRef<char const*>, char const_, void_) + 2691
12 swift 0x000000010fe61154 main + 2324
13 libdyld.dylib 0x00007fff8b68b5ad start + 1
14 libdyld.dylib 0x000000000000004d start + 1956072097
Stack dump:
0. Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchSourceType.swift -primary-file /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchQueue.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchQOSClass.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchGroup.swift /Users/zzy/Downloads/DispatchKit-master/Sources/Bridge.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchDataScale.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchQueueAttr.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchSemaphore.swift /Users/zzy/Downloads/DispatchKit-master/Sources/Dispatch.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchIO.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchTime.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchObject.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchData.swift /Users/zzy/Downloads/DispatchKit-master/Sources/DispatchSource.swift -target arm64-apple-ios7.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.2.sdk -I /Users/zzy/Downloads/DispatchKit-master/Build/Products/Debug-iphoneos -F /Users/zzy/Downloads/DispatchKit-master/Build/Products/Debug-iphoneos -enable-testing -g -module-cache-path /Users/zzy/Downloads/DispatchKit-master/DerivedData/ModuleCache -serialize-debugging-options -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DispatchKit-generated-files.hmap -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DispatchKit-own-target-headers.hmap -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DispatchKit-all-non-framework-target-headers.hmap -Xcc -ivfsoverlay -Xcc /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/all-product-headers.yaml -Xcc -iquote -Xcc /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DispatchKit-project-headers.hmap -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Products/Debug-iphoneos/include -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DerivedSources/arm64 -Xcc -I/Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -working-directory/Users/zzy/Downloads/DispatchKit-master -emit-module-doc-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueuepartial.swiftdoc -Onone -module-name DispatchKit -emit-module-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueuepartial.swiftmodule -serialize-diagnostics-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueue.dia -emit-dependencies-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueue.d -emit-reference-dependencies-path /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueue.swiftdeps -o /Users/zzy/Downloads/DispatchKit-master/Build/Intermediates/DispatchKit.build/Debug-iphoneos/DispatchKit.build/Objects-normal/arm64/DispatchQueue.o

1. While emitting IR SIL function @TToFFV11DispatchKit13DispatchQueue11setSpecificuRq_S_14DispatchCookie_FS0_FTGVSs13UnsafePointerT__GSqq___T_U0_FGVSs20UnsafeMutablePointerT__T for expression at [/Users/zzy/Downloads/DispatchKit-master/Sources/DispatchQueue.swift:82:66 - line:84:9] RangeText="{ ptr in
   release(ptr)
   }"