these 3 derivations will be built:
  /nix/store/vf8ck4v7i09pf4m3rqayfkpi0kk0g3fl-treefmt.toml.drv
  /nix/store/nyzzg5mad8wnfcahgq2hgy2vl97h08wj-treefmt.drv
  /nix/store/021drndbmna7d0nfrsycibyhzwrr1k3g-treefmt-check.drv