these 3 derivations will be built:
  /nix/store/1sn942a7a0kqb25gvnrk4az5z7lpi1sd-treefmt.toml.drv
  /nix/store/yzp1pd5c1m95y8ira1d466g2lgjhikyn-treefmt.drv
  /nix/store/glijagifryfn49m138j5sqvc30a1gdwv-treefmt-check.drv