Hartmut Goebel <h.goebel@crazy-compilers.com> writes:

> Hi Ludo,
>
> this patch is awaiting your review since April. Maybe you could find
> some time to finish it, since it would ease importing and updating rust
> creates *a lot*. See
> https://lists.gnu.org/archive/html/guix-devel/2020-11/msg00168.html

I don't think Ludovic has exclusive review rights on this issue.  That
is, anyone is free to review and merge.

If you need this feature, perhaps you could try it and report whether it
works (or not) for you?