this derivation will be built:
  /nix/store/v6kldigihq5694k7xhk59rq7r2a0hx7y-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/v6kldigihq5694k7xhk59rq7r2a0hx7y-bcachefs-module-7.0.0-31-generic.drv'...