try using xctool

Author: Lukas Schmidt

.travis.yml

@@ -1,12 +1,12 @@
 language: objective-c
 xcode_project: Socket.IO-Client-Swift.xcodeproj # path to your xcodeproj folder
 xcode_scheme: SocketIO-iOS
-osx_image: xcode7
-before_install:
-  - brew update
-  - brew outdated xctool || brew upgrade xctool
-script: xcodebuild -project Socket.IO-Client-Swift.xcodeproj -scheme SocketIO-iOS -sdk iphonesimulator build test  CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
-before_install: cd Socket.IO-Test-Server/ && npm install && cd ..
+osx_image: xcode7  
+before_install: 
+	- cd Socket.IO-Test-Server/ && npm install && cd ..
+	- brew update
+	- brew outdated xctool || brew upgrade xctool
+script: xctool -project Socket.IO-Client-Swift.xcodeproj -scheme SocketIO-iOS -sdk iphonesimulator build test  CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
 install: node Socket.IO-Test-Server/main.js &
 cache:
   directories: