these 3 derivations will be built:
  /nix/store/f7mg0v2g5sdsfh80xkdf0jk195hlqisr-treefmt.toml.drv
  /nix/store/d9s0jljkwr2rs1ksdy99y0b6z3cqpm2g-treefmt.drv
  /nix/store/rv3z0s2g17k7d00v9hdh8vkshzfix5cf-treefmt-check.drv