this derivation will be built:
  /nix/store/86r1fvrs41pizw6qqm2yia41n93xdcan-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/86r1fvrs41pizw6qqm2yia41n93xdcan-bcachefs-module-7.0.0-38-generic.drv'...