Cryptic Error message with scope(failure) and AA

[Anthony Goins]

Is this known?
I've heard there are many problems with associative arrays.

dmd 2.063

---
module scopefailtest;

int[char] AAarray;

void main(string[] args)
{
      AAarray = ['a':1, 'b':2, 'c':3];
      foreach(aa; AAarray)
      {
           scope(failure)continue;
           aa = 32;
      }
}
---

dmd output
Error: cannot implicitly convert expression (0) of type int to 
void


Works without scope(failure)
Works with non Associative Array

No helpful description.
No file or line number.
Very hard to find.