exit status: 134 with stderr:
swift: /home/buildnode/jenkins/workspace/oss-swift-4.1-package-linux-ubuntu-16_04/swift/lib/IRGen/GenClass.cpp:2211: llvm::Constant *swift::irgen::emitCategoryData(swift::irgen::IRGenModule &, swift::ExtensionDecl *): Assertion `IGM.ObjCInterop && "emitting RO-data outside of interop mode"' failed. #0 0x0000000003f24d54 PrintStackTraceSignalHandler(void*) (/usr/bin/swift+0x3f24d54) #1 0x0000000003f25096 SignalHandler(int) (/usr/bin/swift+0x3f25096) #2 0x00007f19216ff390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390) #3 0x00007f191fe3e428 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x35428) #4 0x00007f191fe4002a abort (/lib/x86_64-linux-gnu/libc.so.6+0x3702a) #5 0x00007f191fe36bd7 (/lib/x86_64-linux-gnu/libc.so.6+0x2dbd7) #6 0x00007f191fe36c82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82) #7 0x000000000066766e swift::irgen::emitCategoryData(swift::irgen::IRGenModule&, swift::ExtensionDecl*) (/usr/bin/swift+0x66766e) #8 0x00000000004e8dc1 swift::irgen::IRGenModule::emitExtension(swift::ExtensionDecl*) (/usr/bin/swift+0x4e8dc1) #9 0x00000000004e0555 swift::irgen::IRGenModule::emitSourceFile(swift::SourceFile&, unsigned int) (/usr/bin/swift+0x4e0555) #10 0x00000000005ad7d6 performIRGeneration(swift::IRGenOptions&, swift::ModuleDecl*, std::unique_ptr<swift::SILModule, std::default_delete<swift::SILModule> >, llvm::StringRef, llvm::LLVMContext&, swift::SourceFile*, llvm::GlobalVariable**, unsigned int) (/usr/bin/swift+0x5ad7d6) #11 0x00000000005abf9d swift::performIRGeneration(swift::IRGenOptions&, swift::ModuleDecl*, std::unique_ptr<swift::SILModule, std::default_delete<swift::SILModule> >, llvm::StringRef, llvm::LLVMContext&, llvm::GlobalVariable**) (/usr/bin/swift+0x5abf9d) #12 0x00000000004d878b swift::RunImmediately(swift::CompilerInstance&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>
stderr.txt
https://file.io/eIKrPu