these 3 derivations will be built:
  /nix/store/4c5g98059apn7ilg90bjlk2ljfx34bnh-treefmt.toml.drv
  /nix/store/4yky4a9j829jxmbgvfp2dzisb3ac1ypc-treefmt.drv
  /nix/store/7dr1fsfwn2khr5n2svjc3siy17nhp7gf-nix-shell.drv