these 3 derivations will be built:
  /nix/store/4zs06099jism3wsdw1w69mc83sn9j0v0-treefmt.toml.drv
  /nix/store/s1m7ya75l6pwyxg6j6knnx7y9pmkhgir-treefmt.drv
  /nix/store/ngpfzkq3x6621scibwybk3g1h8mvljnw-treefmt-check.drv