Swift Test build fail to link

gistfile1.txt

$ swift test
Compiling Swift Module 'CardTestSuite' (3 sources)
Linking .build/debug/PlayingCard.xctest/Contents/MacOS/PlayingCard
Undefined symbols for architecture x86_64:
  "__TFO11PlayingCard4RankCfT8rawValueSi_GSqS0__", referenced from:
      __TFFC13CardTestSuite8RankTest22testRankStringEqualityFT_T_U_FSiGSqO11PlayingCard4Rank_ in RankTests.swift.o
  "__TFV11PlayingCard4CardCfT4rankOS_4Rank4suitOS_4Suit_S0_", referenced from:
      __TFC13CardTestSuite8CardTest14testCardSinglefT_T_ in CardTests.swift.o
      __TFC13CardTestSuite8CardTest22testCardStringEqualityfT_T_ in CardTests.swift.o
  "__TMO11PlayingCard4Rank", referenced from:
      __TFC13CardTestSuite8RankTest22testRankStringEqualityfT_T_ in RankTests.swift.o
      __TMaGSqO11PlayingCard4Rank_ in RankTests.swift.o
      __TFFC13CardTestSuite8RankTest22testRankStringEqualityFT_T_U1_FO11PlayingCard4RankSi in RankTests.swift.o
      __TMaGSaO11PlayingCard4Rank_ in RankTests.swift.o
      __TFFC13CardTestSuite8RankTest22testRankStringEqualityFT_T_u_KzT_GSqSS_ in RankTests.swift.o
      __TFFC13CardTestSuite8RankTest22testRankStringEqualityFT_T_u1_KzT_GSqSS_ in RankTests.swift.o
      __TFFC13CardTestSuite8RankTest22testRankStringEqualityFT_T_u3_KzT_GSqSS_ in RankTests.swift.o
      ...
  "__TMO11PlayingCard4Suit", referenced from:
      __TFFC13CardTestSuite8SuitTest22testSuitStringEqualityFT_T_u_KzT_GSqSS_ in SuitTests.swift.o
      __TFFC13CardTestSuite8SuitTest22testSuitStringEqualityFT_T_u1_KzT_GSqSS_ in SuitTests.swift.o
      __TFFC13CardTestSuite8SuitTest22testSuitStringEqualityFT_T_u3_KzT_GSqSS_ in SuitTests.swift.o
      __TFFC13CardTestSuite8SuitTest22testSuitStringEqualityFT_T_u5_KzT_GSqSS_ in SuitTests.swift.o
      __TFC13CardTestSuite8SuitTest18testSuitComparablefT_T_ in SuitTests.swift.o
  "__TMV11PlayingCard4Card", referenced from:
      __TFC13CardTestSuite8CardTest14testCardSinglefT_T_ in CardTests.swift.o
      __TFFC13CardTestSuite8CardTest22testCardStringEqualityFT_T_u_KzT_GSqSS_ in CardTests.swift.o
      __TFFC13CardTestSuite8CardTest22testCardStringEqualityFT_T_u1_KzT_GSqSS_ in CardTests.swift.o
      __TFFC13CardTestSuite8CardTest22testCardStringEqualityFT_T_u3_KzT_GSqSS_ in CardTests.swift.o
  "__TWPO11PlayingCard4Ranks10ComparableS_", referenced from:
      __TFC13CardTestSuite8RankTest18testRankComparablefT_T_ in RankTests.swift.o
  "__TWPO11PlayingCard4Suits10ComparableS_", referenced from:
      __TFC13CardTestSuite8SuitTest18testSuitComparablefT_T_ in SuitTests.swift.o
  "__TWPV11PlayingCard4Cards10ComparableS_", referenced from:
      __TFC13CardTestSuite8CardTest14testCardSinglefT_T_ in CardTests.swift.o
  "__TWPV11PlayingCard4Cards9EquatableS_", referenced from:
      __TFC13CardTestSuite8CardTest14testCardSinglefT_T_ in CardTests.swift.o
ld: symbol(s) not found for architecture x86_64
<unknown>:0: error: link command failed with exit code 1 (use -v to see invocation)
<unknown>:0: error: build had 1 command failures
error: exit(1): /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain/usr/bin/swift-build-tool -f /Volumes/Joses_Stuff/github/Swift\ OSS/example-package-playingcard/.build/debug.yaml test

gistfile2.txt

$ swift build -v
2016-04-19 23:07:36.949 xcodebuild[13800:2337418] Build settings from command line:
2016-04-19 23:07:36.950 xcodebuild[13800:2337418]     ENABLE_BITCODE = NO
2016-04-19 23:07:36.950 xcodebuild[13800:2337418]     SWIFT_DISABLE_REQUIRED_ARCLITE = YES
2016-04-19 23:07:36.950 xcodebuild[13800:2337418]     SWIFT_LINK_OBJC_RUNTIME = YES
2016-04-19 23:07:36.950 xcodebuild[13800:2337418]     TOOLCHAINS = org.swift.3020160412a
2016-04-19 23:07:36.950 xcodebuild[13800:2337418]     XCODE_DEFAULT_TOOLCHAIN_OVERRIDE = /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain
2016-04-19 23:07:37.348 xcodebuild[13802:2337432] Build settings from command line:
2016-04-19 23:07:37.349 xcodebuild[13802:2337432]     ENABLE_BITCODE = NO
2016-04-19 23:07:37.349 xcodebuild[13802:2337432]     SWIFT_DISABLE_REQUIRED_ARCLITE = YES
2016-04-19 23:07:37.349 xcodebuild[13802:2337432]     SWIFT_LINK_OBJC_RUNTIME = YES
2016-04-19 23:07:37.349 xcodebuild[13802:2337432]     TOOLCHAINS = org.swift.3020160412a
2016-04-19 23:07:37.349 xcodebuild[13802:2337432]     XCODE_DEFAULT_TOOLCHAIN_OVERRIDE = /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain
/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain/usr/bin/swiftc --driver-mode=swift -I /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain/usr/lib/swift/pm -L /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain/usr/lib/swift/pm -lPackageDescription -target x86_64-apple-macosx10.10 /Volumes/Joses_Stuff/github/Swift\ OSS/example-package-playingcard/Package.swift -fileno 3
2016-04-19 23:07:39.731 xcodebuild[13808:2337460] Build settings from command line:
2016-04-19 23:07:39.732 xcodebuild[13808:2337460]     ENABLE_BITCODE = NO
2016-04-19 23:07:39.732 xcodebuild[13808:2337460]     SWIFT_DISABLE_REQUIRED_ARCLITE = YES
2016-04-19 23:07:39.732 xcodebuild[13808:2337460]     SWIFT_LINK_OBJC_RUNTIME = YES
2016-04-19 23:07:39.732 xcodebuild[13808:2337460]     TOOLCHAINS = org.swift.3020160412a
2016-04-19 23:07:39.732 xcodebuild[13808:2337460]     XCODE_DEFAULT_TOOLCHAIN_OVERRIDE = /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain
/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain/usr/bin/swift-build-tool -f /Volumes/Joses_Stuff/github/Swift\ OSS/example-package-playingcard/.build/debug.yaml default -v
/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a.xctoolchain/usr/bin/swiftc -module-name PlayingCard -incremental -emit-dependencies -emit-module -emit-module-path "/Volumes/Joses_Stuff/github/Swift OSS/example-package-playingcard/.build/debug/PlayingCard.swiftmodule" -output-file-map "/Volumes/Joses_Stuff/github/Swift OSS/example-package-playingcard/.build/debug/PlayingCard.build/output-file-map.json" -parse-as-library -c "/Volumes/Joses_Stuff/github/Swift OSS/example-package-playingcard/Sources/Card.swift" "/Volumes/Joses_Stuff/github/Swift OSS/example-package-playingcard/Sources/Rank.swift" "/Volumes/Joses_Stuff/github/Swift OSS/example-package-playingcard/Sources/Suit.swift" -I "/Volumes/Joses_Stuff/github/Swift OSS/example-package-playingcard/.build/debug" -j8 -Onone -g -D SWIFT_PACKAGE -enable-testing -F /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -target x86_64-apple-macosx10.10 -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk