these 2 derivations will be built:
  /nix/store/7f1cbix50ccmqvwskmfpys8nfh4b68s1-iets-conformance-adapter.drv
  /nix/store/0l5jz3857ign67l2sq5grih8b7x60qy0-nix-conformance-iets.drv
building '/nix/store/7f1cbix50ccmqvwskmfpys8nfh4b68s1-iets-conformance-adapter.drv'
iets-conformance-adapter> structuredAttrs is enabled
building '/nix/store/0l5jz3857ign67l2sq5grih8b7x60qy0-nix-conformance-iets.drv'
nix-conformance-iets> SKIP lang/eval-okay-closure.nix