these 3 derivations will be built:
  /nix/store/4ajaili24xhh5xdziq76mm04xngx9aa8-treefmt.toml.drv
  /nix/store/9xk2majap7xjxlxz4zfvdajl4jm26q87-treefmt.drv
  /nix/store/kpkfdq8z3mw2cxm5aqqs4d9hqmlbzvhj-treefmt-check.drv