these 3 derivations will be built:
  /nix/store/06bl3krn8h0il0ssdn3irggdjwrr6jbb-treefmt.toml.drv
  /nix/store/5q1qpn01xnfgxdg2kcj1f73z4h0zb07j-treefmt.drv
  /nix/store/dgp495z5ajyx7hifq31whpx5hc1ihqf8-format-check.drv