these 3 derivations will be built:
  /nix/store/w5l64q1f960mxa1jvdy7069h8mcdd1j4-treefmt.toml.drv
  /nix/store/f143mhk5lb7184ab461b8vhwz58c54sv-treefmt.drv
  /nix/store/mh00r211h0havmblim057n4c15l3gya8-treefmt-check.drv