Caused by: java.lang.RuntimeException: org.jruby.runtime.scopes.DynamicScope1 only supports scopes with 1 variables
	at org.jruby.runtime.scopes.DynamicScope1.sizeError(Unknown Source)
	at org.jruby.runtime.scopes.DynamicScope1.setValueVoid(Unknown Source)
	at org.jruby.ir.interpreter.InterpreterEngine.setResult(InterpreterEngine.java:565)
	at org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:302)
	at org.jruby.ir.interpreter.ExitableInterpreterEngine.interpret(ExitableInterpreterEngine.java:88)