these 3 derivations will be built:
  /nix/store/bxmfsrh4myv0mby8p07apan8528lwhpi-treefmt.toml.drv
  /nix/store/40ipdmdiq30zkgm4i5g6lvj0vqkxs5yq-treefmt.drv
  /nix/store/0bmnk31r2qg3m0jp29ipd90q0dbn1bvy-treefmt-check.drv