Open Radar

 
Area:
Xcode

Summary:
The SourceKitService embedded in Xcode 9 beta 2 (9M137d) crashes when running the test of SourceKitten.

reproducing log:
--
➜  17:27:17  git clone https://github.com/jpsim/sourcekitten -b nn-swift-4020170619a
Cloning into 'sourcekitten'...
remote: Counting objects: 8079, done.
remote: Compressing objects: 100% (54/54), done.
remote: Total 8079 (delta 47), reused 69 (delta 38), pack-reused 7986
Receiving objects: 100% (8079/8079), 6.28 MiB | 1.74 MiB/s, done.
Resolving deltas: 100% (5161/5161), done.
➜  17:28:31  cd sourcekitten
➜  17:28:33 git:(nn-swift-4020170619a) DEVELOPER_DIR=/Applications/Xcode-beta.app swift test --filter testRealmObjectiveCDocs
Fetching https://github.com/Carthage/Commandant.git
Fetching https://github.com/drmohundro/SWXMLHash.git
Fetching https://github.com/jpsim/Yams.git
Fetching https://github.com/norio-nomura/Clang_C.git
Fetching https://github.com/norio-nomura/SourceKit.git
Fetching https://github.com/antitypical/Result.git
Cloning https://github.com/jpsim/Yams.git
Resolving https://github.com/jpsim/Yams.git at master
Cloning https://github.com/norio-nomura/SourceKit.git
Resolving https://github.com/norio-nomura/SourceKit.git at 1.0.1
Cloning https://github.com/antitypical/Result.git
Resolving https://github.com/antitypical/Result.git at 3.2.3
Cloning https://github.com/drmohundro/SWXMLHash.git
Resolving https://github.com/drmohundro/SWXMLHash.git at 4.1.0
Cloning https://github.com/norio-nomura/Clang_C.git
Resolving https://github.com/norio-nomura/Clang_C.git at 1.0.2
Cloning https://github.com/Carthage/Commandant.git
Resolving https://github.com/Carthage/Commandant.git at 0.12.0
Compile CYaml src/writer.c
Compile CYaml src/reader.c
Compile CYaml src/scanner.c
Compile CYaml src/parser.c
Compile CYaml src/loader.c
Compile CYaml src/emitter.c
Compile CYaml src/dumper.c
Compile CYaml src/api.c
Compile Swift Module 'SWXMLHash' (2 sources)
Compile Swift Module 'Result' (2 sources)
Compile Swift Module 'Yams' (13 sources)
Compile Swift Module 'Commandant' (10 sources)
Compile Swift Module 'SourceKittenFramework' (34 sources)
Compile Swift Module 'sourcekitten' (10 sources)
Compile Swift Module 'SourceKittenFrameworkTests' (11 sources)
Linking ./.build/debug/sourcekitten
Linking ./.build/debug/SourceKittenPackageTests.xctest/Contents/MacOS/SourceKittenPackageTests
Test Suite 'Selected tests' started at 2017-06-23 17:29:27.199
Test Suite 'SourceKittenPackageTests.xctest' started at 2017-06-23 17:29:27.199
Test Suite 'ClangTranslationUnitTests' started at 2017-06-23 17:29:27.199
Test Case '-[SourceKittenFrameworkTests.ClangTranslationUnitTests testRealmObjectiveCDocs]' started.
fatal error: unexpectedly found nil while unwrapping an Optional value
sourcekit: [1:connection-event-handler:4611: 0.0000] Connection interrupt
sourcekit: [1:pingService:4611: 0.0013] pinging service
DEVELOPER_DIR=/Applications/Xcode-beta.app swift test --filter   55.51s user 13.38s system 147% cpu 46.833 total

Steps to Reproduce:
1. git clone https://github.com/jpsim/sourcekitten -b nn-swift-4020170619a
2. cd sourcekitten
3. DEVELOPER_DIR=/Applications/Xcode-beta.app swift test --filter testRealmObjectiveCDocs

Expected Results:
4. test will complete

Observed Results:
4. SourceKitService crashed and test crashed

Version:
macOS 10.12.5 (16F73)

Notes:
The SourceKitService embedded in the toolchain distributed on swift.org does not crash.
e.g. `swift-4.0-DEVELOPMENT-SNAPSHOT-2017-06-22-a` or `swift-4.0-DEVELOPMENT-SNAPSHOT-2017-06-19-a`

Configuration: