these 3 derivations will be built:
  /nix/store/67km0yl02v23lh5dizy5dc5llm07qd04-treefmt.toml.drv
  /nix/store/wr4wqnx025yjpch0ng6nq1idiqgjdaz4-treefmt.drv
  /nix/store/4z6i3q5r4icbh5amaf80iji5halcdg6d-treefmt-check.drv