these 3 derivations will be built:
  /nix/store/qc2h0m7d4pkvn0sxhyd4v0vms30ycwkn-iets-0.1.0.drv
  /nix/store/8zdkg99xxa8rv291swzc95f3igdy9na4-iets-conformance-adapter.drv
  /nix/store/3k47m2anscj0yva22nnfkibq0iw37m9g-nix-conformance-iets.drv
building '/nix/store/8zdkg99xxa8rv291swzc95f3igdy9na4-iets-conformance-adapter.drv'
iets-conformance-adapter> structuredAttrs is enabled
building '/nix/store/3k47m2anscj0yva22nnfkibq0iw37m9g-nix-conformance-iets.drv'
nix-conformance-iets> SKIP lang/eval-okay-closure.nix
nix-conformance-iets> SKIP lang/eval-okay-functionargs.nix