Scalastyle error on sbt 0.13.9-RC1

build.properties

sbt.version=0.13.9-RC1

build.sbt

name         := "test"
version      := "0.1"
scalaVersion := "2.11.7"

plugins.sbt

addSbtPlugin("org.scalastyle" %% "scalastyle-sbt-plugin" % "0.7.0")

resolvers += "sonatype-releases" at "https://oss.sonatype.org/content/repositories/releases/"

Test.scala

case class Test[A <: Any](t: A)

Error I get:

> scalastyle
    ...
> last compile:scalastyle
[info] scalastyle using config /.../scalastyle-config.xml
[debug] Starting scalastyle
[debug] start file /.../src/main/scala/Test.scala
[error] /.../src/main/scala/Test.scala: Expected token RBRACKET but got Token(XML_START_OPEN,<,18,<)
[debug] end file /.../src/main/scala/Test.scala
java.lang.RuntimeException: errors exist
    at scala.sys.package$.error(package.scala:27)
    at org.scalastyle.sbt.Tasks$.onHasErrors$1(Plugin.scala:123)
    at org.scalastyle.sbt.Tasks$.doScalastyleWithConfig$1(Plugin.scala:167)
    at org.scalastyle.sbt.Tasks$.doScalastyle(Plugin.scala:175)
    at org.scalastyle.sbt.ScalastylePlugin$$anonfun$rawScalastyleSettings$1$$anonfun$apply$1$$anonfun$apply$2.apply(Plugin.scala:88)
    at org.scalastyle.sbt.ScalastylePlugin$$anonfun$rawScalastyleSettings$1$$anonfun$apply$1$$anonfun$apply$2.apply(Plugin.scala:76)
    at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
    at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
    at sbt.std.Transform$$anon$4.work(System.scala:63)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
    at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
    at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
    at sbt.Execute.work(Execute.scala:235)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
    at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
    at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
    at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)