t6963a.scala:4: warning: method scanRight in trait TraversableLike has changed semantics in version 2.9.0:
The behavior of `scanRight` has changed. The previous behavior can be reproduced with scanRight.reverse.
  List(1,2,3,4,5).scanRight(0)(_+_)
                  ^
error: No warnings can be incurred under -Xfatal-warnings.
one warning found
one error found