these 2 derivations will be built:
  /nix/store/szf09d2isgkc4sqshjahvhrds0vzqp8w-iets-conformance-adapter.drv
  /nix/store/para75jqw02gn5f3sp83k8fhn28jhajg-nix-conformance-iets.drv
building '/nix/store/szf09d2isgkc4sqshjahvhrds0vzqp8w-iets-conformance-adapter.drv'
iets-conformance-adapter> structuredAttrs is enabled
building '/nix/store/para75jqw02gn5f3sp83k8fhn28jhajg-nix-conformance-iets.drv'