these 3 derivations will be built:
  /nix/store/sas2xnx91iqp5rznx0idc4k82ws9i5af-treefmt.toml.drv
  /nix/store/qmwrfqpjdyigpv1izky0pf7bv0bx3q5p-treefmt.drv
  /nix/store/n31cj0hal3gl1jsnwpli5bm5ddfh3yli-treefmt-check.drv