these 3 derivations will be built:
  /nix/store/ci88d34kz3dv2m9yw77qiyrfqnfjb7p0-treefmt.toml.drv
  /nix/store/0q1lz6k83dsd6rrzwk034f56f66z0wgx-treefmt.drv
  /nix/store/qlhy4pwdbv3avzxwdw1wbyvv361n7sxj-treefmt-check.drv