these 4 derivations will be built:
  /nix/store/f32v8f5b7m5sl0mdbqhln59ammvvm23j-iets-0.1.0.drv
  /nix/store/gz56135n4ny34va850b5as35lsbg9mmc-iets-fuzz-diff-0.0.0.drv
  /nix/store/y44hpdqzspkwpmfby3pcwcbqqjfdz81v-iets-conformance-adapter.drv
  /nix/store/sgcfh9ydsd05g49wfrb1liyq0v0jnzk7-nix-conformance-iets.drv