these 3 derivations will be built:
  /nix/store/13wy2mfiav0xy3i1vd7gz072h6cfz059-treefmt.toml.drv
  /nix/store/s3h96k6rk7wfkcmj8mwzyka061pxq6qq-treefmt.drv
  /nix/store/mgvx5s517kyxm05c5i2kgkrvlpy8q1nb-treefmt-check.drv