these 3 derivations will be built:
  /nix/store/xxw6d5h74g1d55zphc8wlj5nd1rczb4y-treefmt.toml.drv
  /nix/store/ksq0y30mwh3snlvsyrdzflf736pifq5d-treefmt.drv
  /nix/store/dmgx6s8hhmvs9nrp9dcw8b6ivsv7xn2c-treefmt-check.drv