BUD-MAC-203:liligo-reborn viktor.plezer$ brew install eneko/tap/sourcedocs
==> Installing sourcedocs from eneko/tap
==> Downloading https://github.com/eneko/SourceDocs/archive/0.5.0.tar.gz
Already downloaded: /Users/viktor.plezer/Library/Caches/Homebrew/downloads/b8e719535511822a9f8eac2678de3a7d6d461281c0f7a86ee69346094c4f5b1b--SourceDocs-0.5.0.tar.gz
==> Building SourceDocs
==> swift build --disable-sandbox -c release -Xswiftc -static-stdlib
Last 15 lines from /Users/viktor.plezer/Library/Logs/Homebrew/sourcedocs/01.swift:
/private/tmp/sourcedocs-20180926-32065-q3lt60/SourceDocs-0.5.0/.build/checkouts/SourceKitten.git--835485570352228582/Source/SourceKittenFramework/library_wrapper_sourcekitd.swift:63:95: warning: using '!' is not allowed here; treating this as '?' instead
internal let sourcekitd_response_description_copy: @convention(c) (sourcekitd_response_t) -> (UnsafeMutablePointer<Int8>!) = library.load(symbol: "sourcekitd_response_description_copy")
                                                                                              ^                         ~
                                                                                                                        ?
/private/tmp/sourcedocs-20180926-32065-q3lt60/SourceDocs-0.5.0/.build/checkouts/SourceKitten.git--835485570352228582/Source/SourceKittenFramework/library_wrapper_sourcekitd.swift:66:93: warning: using '!' is not allowed here; treating this as '?' instead
internal let sourcekitd_variant_description_copy: @convention(c) (sourcekitd_variant_t) -> (UnsafeMutablePointer<Int8>!) = library.load(symbol: "sourcekitd_variant_description_copy")
                                                                                            ^                         ~
                                                                                                                      ?
/private/tmp/sourcedocs-20180926-32065-q3lt60/SourceDocs-0.5.0/.build/checkouts/SourceKitten.git--835485570352228582/Source/SourceKittenFramework/library_wrapper_sourcekitd.swift:67:98: warning: using '!' is not allowed here; treating this as '?' instead
internal let sourcekitd_variant_json_description_copy: @convention(c) (sourcekitd_variant_t) -> (UnsafeMutablePointer<Int8>!) = library.load(symbol: "sourcekitd_variant_json_description_copy")
                                                                                                 ^                         ~
                                                                                                                           ?
error: terminated(1): /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-build-tool -f /private/tmp/sourcedocs-20180926-32065-q3lt60/SourceDocs-0.5.0/.build/release.yaml main output:
    


If reporting this issue please do so at (not Homebrew/brew or Homebrew/core):
https://github.com/eneko/homebrew-tap/issues