these 3 derivations will be built:
  /nix/store/5piyr626ss9g0cc634gzxzjfk3jbyi2r-treefmt.toml.drv
  /nix/store/4yrq7b7p0c0g89m2halcs4r8a4j25a0w-treefmt.drv
  /nix/store/kninxyq5pbgl9cim0nbbabfdxwwix64v-treefmt-check.drv