Silent error when using hashmap

[FatalCatharsis via Digitalmars-d]

On Thursday, 27 July 2017 at 00:12:20 UTC, ketmar wrote:
> 'cause windows' event handler called from darkes depths of 
> windows code, and D just can't make sense of the stack to 
> unwind it properly and to show you error message and stack 
> trace. never ever rely on getting proper stack traces for 
> exceptions thrown in windows callbacks: it *may* work 
> sometimes, but it is not guaranteed.

Is there a way to get it to not fail so hard so that prints that 
occur before and after the failure aren't lost? The "begin" and 
"end" in the main don't even get output when the failure happens.