this derivation will be built:
  /nix/store/h0j6wvfc9607nz6g5mwar2ya8a6vrnw7-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/h0j6wvfc9607nz6g5mwar2ya8a6vrnw7-bcachefs-module-7.0.0-39-generic.drv'...