this derivation will be built:
  /nix/store/p86lpr5napwvm839y4c6pp0y7cpw018w-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/p86lpr5napwvm839y4c6pp0y7cpw018w-bcachefs-module-7.0.0-38-generic.drv'...