these 3 derivations will be built:
  /nix/store/q80jc5nha4kn360krrfl2gjz05vnn7ax-treefmt.toml.drv
  /nix/store/zbs484jc4dnjxxqcg4186jxrilp695m7-treefmt.drv
  /nix/store/0bfxf1dz04k2spcs5rn148p79bsiczmr-nix-shell.drv