How can execute method in new Thread?

[Marcone]

My simple example code:

import std;

struct Fruit {
	string name;
	this(string name){
		this.name = name;
	}

	void printmyname(){
		writeln(this.name);
	}

	void showname(){
		task!this.printmyname().executeInNewThread(); // Error here!! 
Can not send this.printmyname() tonew thread.
	}
}


void main(){
	Fruit f = Fruit("Banana");
	f.showname();
}


Error: 
D:\dmd2\windows\bin\..\..\src\phobos\std\parallelism.d(516): 
Error: struct `Fruit` does not overload ()