this derivation will be built:
  /nix/store/7b3cpfv092gry3vv3kh2yc3qvysb6xyl-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/7b3cpfv092gry3vv3kh2yc3qvysb6xyl-bcachefs-module-7.0.0-31-generic.drv'...