With guix master a0dc97a517cbc4c82640e30cacb2a564d128bbe9 guix weather consumes
8 GB of memory on a machine with 8 GB of memory and 1 GB of swap, then is killed
by Linux OOM killer.

Reproducible every time.

Reduced problem to GUIX_PACKAGE_PATH being set.

If I unset it, it works.

Attached contents of $GUIX_PACKAGE_PATH directory.