lue@guix-akoya ~$ acat /var/log/guix/drvs/pm/m3zai6v4ikk7cp0x8d2byl8jpmxvsy-etc.drv.bz2
Backtrace:
           1 (primitive-load "/gnu/store/ncvn5c5a7flqqkkkyaz6jcn8bry?")
           0 (symlink "/gnu/store/xlczrbmrv2hg3lrb4gs9n9a88fb6bg2j-?" ?)

ERROR: In procedure symlink:
In procedure symlink: File exists