this derivation will be built:
  /nix/store/4k8vjvfzq6m3m5vx140zwlcw31104ywi-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/4k8vjvfzq6m3m5vx140zwlcw31104ywi-bcachefs-module-7.0.0-30-generic.drv'...