these 3 derivations will be built:
  /nix/store/v00myv5glbc29rggq832i5rclr9p2ws7-treefmt.toml.drv
  /nix/store/p9398q9nvvl2pmr7r6jankk4nb0j2kxd-treefmt.drv
  /nix/store/sw9r3gnz326jqhddl9l0mvl4qwshdd7r-treefmt-check.drv