Error: Declaration is not yet implemented in CTFE

[bitwise via Digitalmars-d]

The docs for template mixins do show mixins inside functions, so 
is this a bug, or is there something else I'm doing wrong?

//**************************
module main;
import std.traits;

class ModInfo {

}

mixin template moduleInfo(alias MODULE) {
	static const(ModInfo) __module_info = new ModInfo;
}

const(ModInfo) getModuleInfo(alias mod)() {
	static if(__traits(hasMember, mod, "__module_info")) {
		return __traits(getMember, mod, "__module_info");
	} else {
		mixin moduleInfo!mod;      // ERROR [1]
		return __module_info;
	}
}

void main() {
	static const(ModInfo) info = getModuleInfo!(main);
}
//**************************

[1] main.d(17,3): Error: Declaration mixin moduleInfo!(main);
  is not yet implemented in CTFE
main.d(23,31):        called from here: getModuleInfo()