these 3 derivations will be built:
  /nix/store/pn1wn1digicg55211rgwx43qain9jixc-treefmt.toml.drv
  /nix/store/lhk2cbic9j922ks0akc8i98wwm5h5c8m-treefmt.drv
  /nix/store/zkn1xhy4mlrs5iffmqvqp9rcxf3538qp-treefmt-check.drv