these 3 derivations will be built:
  /nix/store/wk1irjmpynajk88rgs4cbx4ylmbs65gq-treefmt.toml.drv
  /nix/store/zp599ksrshj4pnx8g6gc3kp22xfdp8mz-treefmt.drv
  /nix/store/j604c4q3flw8hljg44qgrq89362ydlq2-treefmt-check.drv