these 3 derivations will be built:
  /nix/store/1vk1ixc4g2zxq3gqdyi2dlrn2rdczgi5-treefmt.toml.drv
  /nix/store/h14d0h3b0azmbb0x7abv3vg960walwvs-treefmt.drv
  /nix/store/24mly6sfzrj1k4r5736qdj3d8spdr4zz-treefmt-check.drv