:0: error: build had 1 command failures swift-build: error: exit(1): ["/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2016-02-08-a.xctoolchain/usr/bin/swift-build-tool", "-v", "-f", "/Users/USER/Developer/swiftweb/Clones/swift-helloworld/.build/debug/HelloWorldSwift.o/llbuild.yaml"]