$ docker run --privileged -it --rm norionomura/swift:swift-4.2-branch
root@e4a20490bb53:/# git clone https://github.com/jpsim/SourceKitten.git
Cloning into 'SourceKitten'...
remote: Counting objects: 10013, done.
remote: Compressing objects: 100% (148/148), done.
remote: Total 10013 (delta 117), reused 170 (delta 89), pack-reused 9772
Receiving objects: 100% (10013/10013), 7.66 MiB | 990.00 KiB/s, done.
Resolving deltas: 100% (6415/6415), done.
Checking connectivity... done.
root@e4a20490bb53:/# cd SourceKitten/
root@e4a20490bb53:/SourceKitten# swift build
Fetching https://github.com/norio-nomura/Clang_C.git
Fetching https://github.com/Quick/Quick.git
Fetching https://github.com/Carthage/Commandant.git
Fetching https://github.com/jpsim/Yams.git
Fetching https://github.com/antitypical/Result.git
Fetching https://github.com/norio-nomura/SourceKit.git
Fetching https://github.com/drmohundro/SWXMLHash.git
Fetching https://github.com/Quick/Nimble.git
Completed resolution in 8.87s
Cloning https://github.com/Quick/Nimble.git
Resolving https://github.com/Quick/Nimble.git at 7.1.1
Cloning https://github.com/norio-nomura/Clang_C.git
Resolving https://github.com/norio-nomura/Clang_C.git at 1.0.3
Cloning https://github.com/jpsim/Yams.git
Resolving https://github.com/jpsim/Yams.git at 1.0.0
Cloning https://github.com/Carthage/Commandant.git
Resolving https://github.com/Carthage/Commandant.git at 0.13.0
Cloning https://github.com/antitypical/Result.git
Resolving https://github.com/antitypical/Result.git at 3.2.4
Cloning https://github.com/drmohundro/SWXMLHash.git
Resolving https://github.com/drmohundro/SWXMLHash.git at 4.7.0
Cloning https://github.com/Quick/Quick.git
Resolving https://github.com/Quick/Quick.git at 1.3.0
Cloning https://github.com/norio-nomura/SourceKit.git
Resolving https://github.com/norio-nomura/SourceKit.git at 1.0.1
Compile CYaml src/writer.c
Compile Swift Module 'SWXMLHash' (3 sources)
/SourceKitten/.build/checkouts/SWXMLHash.git--8537495678296207061/Source/SWXMLHash.swift:430:33: warning: conditional cast from 'Error' to 'NSError' always succeeds
        if let err = parseError as? NSError {
                                ^
Compile Swift Module 'Result' (2 sources)
Compile CYaml src/scanner.c
Compile Swift Module 'Commandant' (9 sources)
Compile CYaml src/reader.c
Compile CYaml src/parser.c
Compile CYaml src/emitter.c
Compile CYaml src/api.c
Compile Swift Module 'Yams' (16 sources)
Compile Swift Module 'SourceKittenFramework' (37 sources)
Compile Swift Module 'sourcekitten' (11 sources)
Linking ./.build/x86_64-unknown-linux/debug/sourcekitten
root@e4a20490bb53:/SourceKitten# .build/debug/sourcekitten request --yaml '
key.request: source.request.editor.open
key.name: "-1"
key.sourcetext: "let a = 1"
'
Could not read contents of `
key.request: source.request.editor.open
key.name: "-1"
key.sourcetext: "let a = 1"
`
sourcekitten: /home/buildnode/jenkins/workspace/oss-swift-4.2-package-linux-ubuntu-16_04/swift/lib/AST/Module.cpp:1372: ArrayRef<swift::Token> swift::SourceFile::getAllTokens() const: Assertion `shouldCollectToken() && "Disabled"' failed.
Aborted
root@e4a20490bb53:/SourceKitten#