like( exception {
$moose_obj->a_str( $moose_obj )
- }, qr/Attribute \(a_str\) does not pass the type constraint because\: Validation failed for 'Str' with value OverloadedStr=HASH\(0x.+?\)/, '... dies without overloading the string' );
+ }, qr/Attribute \(a_str\) does not pass the type constraint because\: Validation failed for 'Str' with value .*OverloadedStr/, '... dies without overloading the string' );
}