these 3 derivations will be built:
  /nix/store/iyzzif38sqxigcwlsysc8f5gb6f19lwj-treefmt.toml.drv
  /nix/store/nrrpamzv321kqf0p5waqzn0p15y2b7ca-treefmt.drv
  /nix/store/jwlilwjrb0gn8q319hdknh813sfd69mi-treefmt-check.drv