these 3 derivations will be built:
  /nix/store/3lxmk26wnvkmgsylxlw307jb27d1kyx7-treefmt.toml.drv
  /nix/store/fa09lzrpffx15d1214fmsxn7pyb83ln3-treefmt.drv
  /nix/store/s2zi7mb2x9gmq04810ypqfm5x4i4ja8q-treefmt-check.drv