Why can't the compiler specify a type parameter for a package object (while it works fine for an object)?

Scala 2.11.4

Foo.scala

trait Echo [T] {
  def echo(t: T): Unit
}

trait IntEcho extends Echo[Int] {
  def echo(t: Int) = println(t)
}

object echo extends IntEcho
package object echo1  extends IntEcho

      

        
        
        
      

    

After compiling this file and loading it into scala repl, I ran the following test

scala> :t echo.echo _ Int => Unit

scala> :t echo1.echo _ T => Unit

      

        
        
        
      

    

Why isn't T allowed for Int?