bug#57562: [PATCH] * lisp/emacs-lisp/comp.el (comp-run-async-workers): Fail more gracefully

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: 57562@debbugs.gnu.org
> Date: Sat, 03 Sep 2022 11:24:02 -0400
> 
> > I have trouble seeing the actual change amongst unrelated whitespace
> > changes.  Please show a patch with the minimal necessary change,
> > without all the reformatting.  Emacs 28.2 is so close to a release
> > that playing whitespace and formatting games is not appropriate there.
> 
> Hmm... looks like I sent the patch I had on `master`, sorry.
> Here is the cleaner `emacs-28` version.

So this means we will silently skip native-compilation, leaving an
obscure message in a buffer, is that right?  Maybe this is the best we
can do for emacs-28 so close to the release, but for master wouldn't
it be better to use delayed-warning instead?