I think I may have been mistakenly included here. :-)
 I'm not the author of straight.el and I don't see the author in this
thread.

Artur

On Wed, 20 Nov 2019, 2:37 pm Eli Zaretskii, <eliz@gnu.org> wrote:

> > From: Ihor Radchenko <yantar92@gmail.com>
> > Cc: 38264@debbugs.gnu.org
> > Date: Thu, 21 Nov 2019 00:35:50 +0800
> >
> > I am also wondering why there is no error shown in the terminal when
> > emacs is terminated after executing the code I provided.
>
> Probably because your stderr is redirected to some great void in a GUI
> session.
>
> > I tried to run emacs in batch mode directly like
> >
> > $ emacs -Q --batch --eval '(/ 1 0)'
> > Arithmetic error
>
> Yes, that goes to stderr, which is in batch mode connected to the
> console.
>
> > I suspect that it was just copying. Will forward your question to the
> > straight.el author.
>
> Thanks.
>