this derivation will be built:
  /nix/store/x9cmwppafw61arm93v74yi2jjsnxhsm6-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/x9cmwppafw61arm93v74yi2jjsnxhsm6-bcachefs-module-7.0.0-38-generic.drv'...