this derivation will be built:
  /nix/store/kh667i9ffq6v2azwajbcq8v8szj6qpkk-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/kh667i9ffq6v2azwajbcq8v8szj6qpkk-bcachefs-module-7.0.0-39-generic.drv'...