https://build.chromium.org/p/chromium.mac/builders/ios-simulator/builds/272

/b/build/slave/ios-simulator/build/src/out/Debug-iphonesimulator/iossim -d iPhone 5s -s 9.0 -t 120 -u /tmp/tmpBtqI4E /b/build/slave/ios-simulator/build/src/out/Debug-iphonesimulator/ios_web_unittests.app
cwd: /b/build/slave/ios-simulator/build
2016-05-10 16:50:15.712 iossim[15492:36931] [MT] DVTAssertions: Warning in /Library/Caches/com.apple.xbs/Sources/DVTFrameworks/DVTFrameworks-8201/DVTFoundation/PlugInArchitecture/PlugInManager/DVTPlugInManager.m:257
Details:  Requested but did not find extension point with identifier Xcode.DVTFoundation.DevicePlatformMapping
Object:   <DVTPlugInManager: 0x7fbce9719c00>
Method:   -extensionPointWithIdentifier:
Thread:   <NSThread: 0x7fbce940b6d0>{number = 1, name = main}
Please file a bug at http://bugreport.apple.com with this warning message and any useful information you can provide.
iossim: ERROR: Simulator failed to start: "The operation couldn’t be completed. (Cocoa error -102.)" (NSCocoaErrorDomain:-102)
Supported device/SDK combinations:
  -d 'iossim - iPhone 5s ' -s '9.0'
/b/build/slave/ios-simulator/build/src/out/Debug-iphonesimulator/iossim returned 4