this derivation will be built:
  /nix/store/mjybkq8kcf0fw84zwq52s8yz7i025w71-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/mjybkq8kcf0fw84zwq52s8yz7i025w71-bcachefs-module-7.0.0-31-generic.drv'...