t8525.scala:7: warning: Adapting argument list by creating a 2-tuple: this may not be what you want. signature: X.f(p: (Int, Int)): Int given arguments: 3, 4 after adaptation: X.f((3, 4): (Int, Int)) def g = f(3, 4) // adapted ^ t8525.scala:9: warning: private[this] value name in class X shadows mutable name inherited from class Named. Changes to name will not be visible within class X - you may want to give them distinct names. override def toString = name // shadowing mutable var name ^ t8525.scala:8: warning: side-effecting nullary methods are discouraged: suggest defining as `def u()` instead def u: Unit = () // unitarian universalist ^ error: No warnings can be incurred under -Xfatal-warnings. three warnings found one error found