these 3 derivations will be built:
  /nix/store/zcaz5lqvvhs5wcz7lh7y2p5zvi3bahc4-treefmt.toml.drv
  /nix/store/3ql55fg32l138xyp5ym9bbp69h6fyvdj-treefmt.drv
  /nix/store/wvns8n2jy5l1zwdwyvnsyaz44zaz9hv7-treefmt-check.drv