these 3 derivations will be built:
  /nix/store/1wpspwp9g8dr0npml4wa3q89mcycz147-treefmt.toml.drv
  /nix/store/kim71jxhfba9g00fsv4dbdr1ydzrymas-treefmt.drv
  /nix/store/m2lr04y7rsgkm8vjqj97ain2hprj18ld-treefmt-check.drv