these 3 derivations will be built:
  /nix/store/2hd6ggaygzw06cg0r4nvi7iia9l5ywnj-treefmt.toml.drv
  /nix/store/k6i908aj9yplasjk5rc0k11r59l1kx2g-treefmt.drv
  /nix/store/rmbc8cx47d5j7cd4rvp24aj373vbshpx-treefmt-check.drv