How to allocate arrays of objects?

[cy via Digitalmars-d-learn]

The following program segfaults for me, compiling it with 
dmdv2.070 as well as the latest git. I must be doing it wrong. 
There's a way to specify class construction, or emplace, or 
something. But I can't find it! How do I deal with arrays of 
objects?

class A {
	int stuff;
}

void main()
{
	A[] as = new A[2];
	assert(as.length==2);
	as[0].stuff = 42;
}

Looking at it in gdb, the program segfaults on "A[] as = new 
A[2]" and never reaches "as[0].stuff = 42". But removing 
"as[0].stuff = 42" causes the program to stop segfaulting! 
assert(as.length == 2) doesn't get reached either.