Xcode 11.4.1, Swift 5.2.2 Abort trap: 6 points to Shallows

[jbmaxwell]

I'm hitting an Abort trap: 6 while trying to build my project and Shallows appears to be involved:

1.	Apple Swift version 5.2.2 (swiftlang-1103.0.32.6 clang-1103.0.32.51)
2.	While running pass #340 SILModuleTransform "MandatorySILLinker".
3.	While deserializing SIL function "$s8Shallows15StorageProtocolPAAE02asB0AA0B0Vy3KeyQz5ValueQzGyF"
0  swift                    0x00000001109e24ea PrintStackTraceSignalHandler(void*) + 42
1  swift                    0x00000001109e1cc0 SignalHandler(int) + 352
2  libsystem_platform.dylib 0x00007fff6f90842d _sigtramp + 29
3  libsystem_platform.dylib 0x00007ffbf001d1b0 _sigtramp + 2154909088
4  libsystem_c.dylib        0x00007fff6f7dda1c abort + 120
5  swift                    0x000000010d412470 std::__1::__vector_base<swift::Diagnostic, std::__1::allocator<swift::Diagnostic> >::clear() (.16933) + 0
6  swift                    0x000000010d420e40 swift::DeclDeserializer::deserializeAnyFunc(llvm::ArrayRef<unsigned long long>, llvm::StringRef, bool) + 0
7  swift                    0x000000010d43ed82 swift::SILDeserializer::readSILFunctionChecked(llvm::PointerEmbeddedInt<unsigned int, 31>, swift::SILFunction*, llvm::StringRef, bool, bool) + 11202
8  swift                    0x000000010d45f277 swift::SILDeserializer::lookupSILFunction(swift::SILFunction*, bool) + 679
9  swift                    0x000000010d0799cd swift::SILLinkerVisitor::maybeAddFunctionToWorklist(swift::SILFunction*) + 253
10 swift                    0x000000010d079c54 swift::SILLinkerVisitor::processFunction(swift::SILFunction*) + 244
11 swift                    0x000000010cf4cb10 (anonymous namespace)::SILLinker::run() + 304
12 swift                    0x000000010ce3e0d9 swift::SILPassManager::execute() + 2329
13 swift                    0x000000010ce43408 swift::runSILDiagnosticPasses(swift::SILModule&) + 2264
14 swift                    0x000000010ca40a02 swift::CompilerInstance::performSILProcessing(swift::SILModule*, swift::UnifiedStatsReporter*) + 66
15 swift                    0x000000010c73e450 performCompileStepsPostSILGen(swift::CompilerInstance&, swift::CompilerInvocation&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule> >, bool, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, bool, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 1712
16 swift                    0x000000010c73429a swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 48426
17 swift                    0x000000010c6abf53 main + 1283
18 libdyld.dylib            0x00007fff6f70f7fd start + 1
error: Abort trap: 6 (in target 'SpliqsTool' from project 'SpliqsTool')

Not sure whether this is Apple's issue or yours, but I thought I'd point it out.
The Shallows project, on its own, builds fine, so I'm not sure why linking to it in my project is an issue... Xcode... grrr...

[jbmaxwell]

omg... rtfm... I've been using Shallows for ages and completely failed to read your updated README... SPM only. Apologies.