scala 2.12.0: Subtractable's type parameter bounds

gistfile1.txt

$ sbt
> console
[info] Starting scala interpreter...
[info] 
Welcome to Scala 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_111).
Type in expressions for evaluation. Or try :help.

scala> val nestedScala = Seq(Set("a", 1), Map(5 -> "x"))
nestedScala: Seq[scala.collection.immutable.Iterable[Any] with Int => Any{def seq: scala.collection.immutable.Iterable[Any] with Int => Any{def seq: scala.collection.immutable.Iterable[Any] with Int => Any}}] = List(Set(a, 1), Map(5 -> x))




> console
[info] Starting scala interpreter...
[info] 
Welcome to Scala 2.12.0-M5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_111).
Type in expressions for evaluation. Or try :help.

scala> val nestedScala = Seq(Set("a", 1), Map(5 -> "x"))
nestedScala: Seq[scala.collection.immutable.Iterable[Any] with Int => Any{def seq: scala.collection.immutable.Iterable[Any] with Int => Any{def seq: scala.collection.immutable.Iterable[Any] with Int => Any}}] = List(Set(a, 1), Map(5 -> x))



$ sbt
> console
[info] Starting scala interpreter...
[info] 
Welcome to Scala 2.12.0-RC1 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_111).
Type in expressions for evaluation. Or try :help.

scala> val nestedScala = Seq(Set("a", 1), Map(5 -> "x"))
<console>:11: error: type arguments [?,Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any]]]{def seq: Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any]]}] do not conform to trait Subtractable's type parameter bounds [A,+Repr <: scala.collection.generic.Subtractable[A,Repr]]
       val nestedScala = Seq(Set("a", 1), Map(5 -> "x"))
           ^
<console>:11: error: type arguments [?,Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any]]]{def seq: Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any]]}] do not conform to trait Subtractable's type parameter bounds [A,+Repr <: scala.collection.generic.Subtractable[A,Repr]]
       val nestedScala = Seq(Set("a", 1), Map(5 -> "x"))
                         ^




$ sbt
> console
[info] Starting scala interpreter...
[info] 
Welcome to Scala 2.12.0 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_111).
Type in expressions for evaluation. Or try :help.

scala> val nestedScala = Seq(Set("a", 1), Map(5 -> "x"))
<console>:11: error: type arguments [?,Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any]]]{def seq: Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any]]}] do not conform to trait Subtractable's type parameter bounds [A,+Repr <: scala.collection.generic.Subtractable[A,Repr]]
       val nestedScala = Seq(Set("a", 1), Map(5 -> "x"))
           ^
<console>:11: error: type arguments [?,Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any]]]{def seq: Iterable[Any] with Int => Any with scala.collection.generic.Subtractable[_ >: Int, Iterable[Any]]}] do not conform to trait Subtractable's type parameter bounds [A,+Repr <: scala.collection.generic.Subtractable[A,Repr]]
       val nestedScala = Seq(Set("a", 1), Map(5 -> "x"))
                         ^