How to enable feedback for AssertError?

[your_name via Digitalmars-d-learn]

Sorry for the necromancy.

I failed to reproduce the issue for single threaded programs. 
Which is good.

As far as std.concurrency is concerned I still have questions.
1. How does the main thread of a program print an 
(Assert)Error/Exception when it is terminated by it ?

2. Where is the place to make a suggestion for a documentation 
update for std.concurrency?
  For someone unware to this pitfall it can be quite a time waster 
so a Notice in the docs would be nice.

Thanks for the help.