Carthage: `make install` via Swift 5.X errors on Swift Package Manager 3.X-style package descriptions in dependencies

[JadianZheng]

• carthage install method: [ ] .pkg, [ ] homebrew, [X] source
• carthage version:
  0c3bb67d8251a29e6ded96569f61d690af148ca6
• xcodebuild -version:
  Xcode 10.2 - beta
  Build version 10P82s
• output:
  ```bash shell
  swift build -c release -Xswiftc -static-stdlib
  Updating https://github.com/apple/swift-package-manager.git
  Updating https://github.com/Carthage/Commandant.git
  Updating https://github.com/Carthage/ReactiveTask.git
  Updating https://github.com/antitypical/Result.git
  Updating https://github.com/ReactiveCocoa/ReactiveSwift.git
  Updating https://github.com/apple/swift-llbuild.git
  Updating https://github.com/Quick/Nimble.git
  Updating https://github.com/thoughtbot/Curry.git
  Updating https://github.com/Quick/Quick.git
  Updating https://github.com/mdiep/Tentacle.git
  Updating https://github.com/jdhealy/PrettyColors.git
  error: dependency graph is unresolvable; found these conflicting requirements:

Dependencies:
https://github.com/jdhealy/PrettyColors.git @ 5.0.0..<6.0.0
https://github.com/thoughtbot/Curry.git @ 4.0.0..<5.0.0
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'Result' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'ReactiveSwift' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'ReactiveTask' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'Quick' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'Nimble' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'Quick' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'Nimble' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'Tentacle' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'Curry' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'SwiftPM-auto' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'Commandant' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'Curry' not found
'Carthage' /Users/Jadian/GitPro/GitHub/Carthage: error: product dependency 'PrettyColors' not found
make: * [installables] Error 1
```

[jdhealy]

Thanks for filing an issue ✨

PrettyColors still has a Swift Package Manager 3.X-style package description, which Swift 5 has just dropped support for.

I hope to release an update with a compatible package description within a few days.

[ikesyo]

Filled an issue on thoughtbot/Curry as well.

[mxcl]

I filed an issue https://bugs.swift.org/browse/SR-9775 to get the error message improved.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[FranklinYu]

@jdhealy Any update for PrettyColors?

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[FranklinYu]

I will keep this alive until I find some time to implement it myself.

[ikesyo]

Curry and PrettyColors were updated by #2739.

[FranklinYu]

@ikesyo Awesome! Waiting for next release.