git clone https://github.com/asynchrony/Re-Lax.git
cd Re-Lax/
git checkout -f 4502081d713257bb414d7dffa25f10ba59fa6770
open ReLax.xcworkspace

return [UInt8](UnsafeBufferPointer(start: $0 #^COMPLETE^#, count: uuid.count/MemoryLayout<UInt8>.stride))

Crashed Thread:        5

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:
dyld2 mode
Stack dump:
0.  While walking into decl 'uuidHexString()' at /private/tmp/xfails/Re-Lax/ReLax/ReLax/DataHelpers.swift:79:1
1.  While type-checking expression at [/private/tmp/xfails/Re-Lax/ReLax/ReLax/DataHelpers.swift:83:51 - line:83:51] RangeText="$"
 
Assertion failed: (!completionType->hasUnresolvedType()), function typeCheckCompletionSequence, file /Users/buildnode/jenkins/workspace/oss-swift-package-osx/swift/lib/Sema/TypeCheckConstraints.cpp, line 2258.
 
...

Thread 5 Crashed:
0   libsystem_kernel.dylib          0x00007fff5dad99a6 __pthread_kill + 10
1   libsystem_pthread.dylib         0x00007fff5db77000 pthread_kill + 285
2   libsystem_c.dylib               0x00007fff5da2c13e __abort + 144
3   libsystem_c.dylib               0x00007fff5da2c0ac abort + 142
4   libsystem_c.dylib               0x00007fff5d9f478e __assert_rtn + 320
5   com.apple.SourceKitService.4.2.2018081601_osx   0x000000010c318b5d swift::TypeChecker::typeCheckCompletionSequence(swift::Expr*&, swift::DeclContext*) + 1357
6   com.apple.SourceKitService.4.2.2018081601_osx   0x000000010bbda0a3 (anonymous namespace)::CodeCompletionCallbacksImpl::doneParsing() + 23939
7   com.apple.SourceKitService.4.2.2018081601_osx   0x000000010c4e7f70 (anonymous namespace)::ParseDelayedFunctionBodies::walkToDeclPre(swift::Decl*) + 304
8   com.apple.SourceKitService.4.2.2018081601_osx   0x000000010c598cfb (anonymous namespace)::Traversal::doIt(swift::Decl*) + 171
9   com.apple.SourceKitService.4.2.2018081601_osx   0x000000010c598c3b swift::Decl::walk(swift::ASTWalker&) + 27
10  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010c64f24a swift::SourceFile::walk(swift::ASTWalker&) + 170
11  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010c64db0f swift::ModuleDecl::walk(swift::ASTWalker&) + 95
12  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010c4e02f7 swift::performDelayedParsing(swift::DeclContext*, swift::PersistentParserState&, swift::CodeCompletionCallbacksFactory*) + 215
13  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010bbbd769 swift::CompilerInstance::parseAndCheckTypesUpTo(swift::CompilerInstance::ImplicitImports const&, swift::SourceFile::ASTStage_t) + 1081
14  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010bbbcae3 swift::CompilerInstance::performSemaUpTo(swift::SourceFile::ASTStage_t) + 627
15  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010ba2fd4f swiftCodeCompleteImpl(SourceKit::SwiftLangSupport&, llvm::MemoryBuffer*, unsigned int, (anonymous namespace)::SwiftCodeCompletionConsumer&, llvm::ArrayRef<char const*>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&) + 2159
16  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010ba2f473 SourceKit::SwiftLangSupport::codeComplete(llvm::MemoryBuffer*, unsigned int, SourceKit::CodeCompletionConsumer&, llvm::ArrayRef<char const*>) + 131
17  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010ba8bd25 handleSemanticRequest(sourcekitd::RequestDict, std::__1::function<void (void*)>, sourcekitd_uid_s*, llvm::Optional<llvm::StringRef>, llvm::Optional<llvm::StringRef>, llvm::ArrayRef<char const*>) + 725
18  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010ba8b9d5 void SourceKit::WorkQueue::DispatchData::callAndDelete<handleRequestImpl(void*, std::__1::function<void (void*)>)::$_4>(void*) + 149
19  libdispatch.dylib               0x00007fff5d9359a6 _dispatch_client_callout + 8
20  libdispatch.dylib               0x00007fff5d94624e _dispatch_block_invoke_direct + 262
21  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010e46639f executeBlock(void*) + 15
22  com.apple.SourceKitService.4.2.2018081601_osx   0x000000010bb4c23d ExecuteOnThread_Dispatch(void*) + 13
23  libsystem_pthread.dylib         0x00007fff5db74bc6 _pthread_body + 128
24  libsystem_pthread.dylib         0x00007fff5db74b32 _pthread_start + 70
25  libsystem_pthread.dylib         0x00007fff5db746f9 thread_start + 13