this derivation will be built:
  /nix/store/gs32b268f3msy4iz4z6js29pnizjybm6-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/gs32b268f3msy4iz4z6js29pnizjybm6-bcachefs-module-7.0.0-28-generic.drv'...