this derivation will be built:
  /nix/store/v4nqi2sglcwh237ak7vwxmzx19dwf76w-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/v4nqi2sglcwh237ak7vwxmzx19dwf76w-bcachefs-module-7.0.0-31-generic.drv'...