this derivation will be built:
  /nix/store/bb2lrwl2var8azr03zkm0947w1cdwsam-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/bb2lrwl2var8azr03zkm0947w1cdwsam-bcachefs-module-7.0.0-39-generic.drv'...