these 3 derivations will be built:
  /nix/store/a23rv4b4817rajqj95qfgjfm7ryjr82z-treefmt.toml.drv
  /nix/store/x1j4yffmy58y9id1k16q0g9pfwsgicj7-treefmt.drv
  /nix/store/c81830k1yh4gkwk3ki1bqlf205lxhv9h-treefmt-check.drv