these 3 derivations will be built:
  /nix/store/yws18m1iwa2ing81vkrya98979l1i9dy-treefmt.toml.drv
  /nix/store/c7xvvgrps7pa6ifia7p3b41whsmsh9d7-treefmt.drv
  /nix/store/6jz37q6ird6c0dq8ww00qxqmm890s2vk-treefmt-check.drv