these 3 derivations will be built:
  /nix/store/qk4k7vfcgbd97bxni1djl8shvn38an1a-treefmt.toml.drv
  /nix/store/k193irfribif63xp07hy57qs12wy62xi-treefmt.drv
  /nix/store/24dcwkxv73ybqfr0ijn8dsmnkci01mwr-treefmt-check.drv