Josselin Poiret via Bug reports for GNU Guix schreef op do 26-05-2022
om 22:50 [+0200]:
> +      fprintf (fdopen (err, "a"), "start_child: dup failed: %s\n", msg);

fdopen can fail due to out-of-memory problems, so you'll have to check
the return value, or use dprintf instead which accepts a file
descriptor.

Greetings,
Maxime.