these 2 derivations will be built:
  /nix/store/jqf2gqc1i50lnzvxxsjn9pa49v5d07y5-iets-conformance-adapter.drv
  /nix/store/bkkh9hmcsb8lclb76jin4dbz9swl0w8j-nix-conformance-iets.drv
building '/nix/store/jqf2gqc1i50lnzvxxsjn9pa49v5d07y5-iets-conformance-adapter.drv'
iets-conformance-adapter> structuredAttrs is enabled
building '/nix/store/bkkh9hmcsb8lclb76jin4dbz9swl0w8j-nix-conformance-iets.drv'
nix-conformance-iets> SKIP lang/eval-okay-closure.nix