these 3 derivations will be built:
  /nix/store/67km0yl02v23lh5dizy5dc5llm07qd04-treefmt.toml.drv
  /nix/store/wr4wqnx025yjpch0ng6nq1idiqgjdaz4-treefmt.drv
  /nix/store/98v1gi5kkxk97wq1f7bhds52fic7qs7m-treefmt-check.drv