these 2 derivations will be built:
  /nix/store/hf9c709hskqp2wg1llc4vxpwih4cmj0c-iets-conformance-adapter.drv
  /nix/store/47171wqvhig1i1d5s7zp1yq9jdsqls1y-nix-conformance-iets.drv
building '/nix/store/hf9c709hskqp2wg1llc4vxpwih4cmj0c-iets-conformance-adapter.drv'
iets-conformance-adapter> structuredAttrs is enabled
building '/nix/store/47171wqvhig1i1d5s7zp1yq9jdsqls1y-nix-conformance-iets.drv'
nix-conformance-iets> SKIP lang/eval-okay-closure.nix