these 3 derivations will be built:
  /nix/store/9j4dn5fx33pz5ajsxms9aamipq3xki02-treefmt.toml.drv
  /nix/store/habfscpfiiijv0sxz081xggghpyziwq5-treefmt.drv
  /nix/store/5ryl7lxhrzwzikmfs4scb3z9xw00dwr9-treefmt-check.drv