this derivation will be built:
  /nix/store/r1jv5rhpj6cjw5zx8cw3a6gh8f5kvj87-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/r1jv5rhpj6cjw5zx8cw3a6gh8f5kvj87-bcachefs-module-7.0.0-38-generic.drv'...