these 3 derivations will be built:
  /nix/store/7dy0myh7j2jv7ph95nb82rvvpmyfy105-treefmt.toml.drv
  /nix/store/nk5qjsqvlwii81nyczkb5aj28810kzn1-treefmt.drv
  /nix/store/vlf2q5s9jzywdwzrp91j36wr3slp1fqx-treefmt-check.drv