this derivation will be built:
  /nix/store/2pgvy8av5pgcz64535a20b0xayybz7c3-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/2pgvy8av5pgcz64535a20b0xayybz7c3-bcachefs-module-7.0.0-38-generic.drv'...