these 3 derivations will be built:
  /nix/store/gsx5d0kskqzd3vcrrjk315c9i3mqgsn2-treefmt.toml.drv
  /nix/store/vif9s8j0i7ygl7kgmdhlqbqm88ga8644-treefmt.drv
  /nix/store/xcpi2d8a1zngpnis0ma3fx17g1sv3i6a-treefmt-check.drv