these 3 derivations will be built:
  /nix/store/hcg60pb9lypyrp7chz3nmlxfvc3gzr2c-treefmt.toml.drv
  /nix/store/sibmr7kixn2f551xmma57sylcblfwjmm-treefmt.drv
  /nix/store/0sv73h72kdggwsyig6kk608hl5nsny7s-treefmt-check.drv