these 3 derivations will be built:
  /nix/store/ylx0sywach73sxpqlsgmjanj59xrm54b-treefmt.toml.drv
  /nix/store/1vac8m34lpisg4xs5vw8nbm62gn2aq81-treefmt.drv
  /nix/store/yzs0q7rxqhm1ainnpl10p2wcph1017jp-treefmt-check.drv