these 3 derivations will be built:
  /nix/store/7fxsas6l9qnkwz8jx71w719qjbm7pzm3-treefmt.toml.drv
  /nix/store/2lb82x7iq5wkaihmi37jf8mj2l89bylw-treefmt.drv
  /nix/store/fq1g4ac32y3c8fxx9k5x34hs181862zg-treefmt-check.drv