these 2 derivations will be built:
  /nix/store/2p78k8wnxgmjx0dk1dpf2qk22r5li82g-treefmt.drv
  /nix/store/fbp18bj2nx3s0prbzxvsbjm5ck1zxr3g-treefmt-check.drv
these 2 paths will be fetched (0.0 KiB download, 2.5 KiB unpacked):
  /nix/store/mbd68c5v18pl2sj0ax1lbjv8wnrzv346-nil
  /nix/store/k784ll0nj65alnvax7wj56phbmb3560h-treefmt.toml