these 3 derivations will be built:
  /nix/store/gimv5cgvml2q7ym625va9hd4i4kbdmsx-treefmt.toml.drv
  /nix/store/m6qhip4qvlsv31ih0i1q30j8drads7pi-treefmt.drv
  /nix/store/h4mn5jxsa58k34higx1vkkp72i74dbbf-inputDerivation-treefmt-check.drv