these 3 derivations will be built:
  /nix/store/cmdcy92s0wsj96ajzib6gm4c5k6w3wq0-treefmt.toml.drv
  /nix/store/slj916ym309gkdaffla5dab3b0ifs75x-treefmt.drv
  /nix/store/q94z2i2jm1ygw43rqmikijbxba5nvxhs-treefmt-check.drv