sbt-release zero exit code

build.sbt

import sbtrelease._
import ReleaseStateTransformations._

name := "exit-code"

scalaVersion := "2.10.4"

releaseSettings

ReleaseKeys.releaseProcess := Seq[ReleaseStep](
  inquireVersions,                        // : ReleaseStep
  runTest,                                // : ReleaseStep
  setReleaseVersion,                      // : ReleaseStep
  commitReleaseVersion,                   // : ReleaseStep, performs the initial git checks
  tagRelease,                             // : ReleaseStep
  setNextVersion,                         // : ReleaseStep
  commitNextVersion                      // : ReleaseStep
)

project slash build.properties

sbt.version=0.13.5

project slash plugins.sbt

addSbtPlugin("com.github.gseitz" % "sbt-release" % "0.8.4")

src slash main slash scala slash Main.scala

object Main {
  def main(args: String*): Unit = {
    this code does not compile
  }
}