case-collision.scala:5: warning: Class foo.BIPPY differs only in case from foo.Bippy. Such classes will overwrite one another on case-insensitive filesystems. class BIPPY ^ case-collision.scala:8: warning: Class foo.DINGO$ differs only in case from foo.Dingo$. Such classes will overwrite one another on case-insensitive filesystems. object DINGO ^ case-collision.scala:11: warning: Class foo.HyRaX$ differs only in case from foo.Hyrax$. Such classes will overwrite one another on case-insensitive filesystems. object HyRaX ^ error: No warnings can be incurred under -Xfatal-warnings. three warnings found one error found