these 3 derivations will be built:
  /nix/store/1vh8s80344z69b2k72yrakl4j7h1ppvb-treefmt.toml.drv
  /nix/store/a6fi8489sxvwaqq8img4n45bpyqzm5gy-treefmt.drv
  /nix/store/8vq6y733pr97cm2haad2pjvd0gwja1dl-treefmt-check.drv