Compiling with -profile=gc makes program crash - why?

[Ivan Kazmenko via Digitalmars-d]

On Wednesday, 20 April 2016 at 22:27:36 UTC, Ivan Kazmenko wrote:
> I'm trying to use DMD option "-profile=gc".  With this option, 
> the following simple program crashes with 2.071.0 down to 
> 2.069.0 but still works on 2.068.2.  The command line is "dmd 
> -g -profile=gc prfail1.d" on Windows (compiled to 32-bit by 
> default).

Ouch, meant to post to D.learn.  Sorry!

Well, perhaps no point in reposting now.