these 3 derivations will be built:
  /nix/store/w478xaqls17v0kvn3cdalgnx8jhdcryf-treefmt.toml.drv
  /nix/store/25ancrh9fclwf24fn92346wdnrz1llqj-treefmt.drv
  /nix/store/zj843j1q0afmgwkwwgh6h9byfygv2l87-treefmt-check.drv