bug#39941: Disk-image size increase on core-updates.

[Mathieu Othacehe]

The "guix size" report is attached. Several issues appear:

* Inclusion of gcc-cross-sans-libc-aarch64-linux-gnu-7.5.0 and
gcc-cross-aarch64-linux-gnu-7.5.0.

* Three different versions of guile-2.2.6.

* Duplicated glibc, bash and coreutils.

Thanks,

Mathieu

size_core
Description: Binary data