these 4 derivations will be built:
  /nix/store/b0f4vx92bfgx9fk1a5lylkqgjcziyx7i-iets-deps-0.2.0.drv
  /nix/store/rckxzcx94bi89rsm3bs6f508dbh6xijq-iets-0.2.0.drv
  /nix/store/8hp73svy2659nsf7b3g4wcyw5wlp2n9q-iets-conformance-adapter.drv
  /nix/store/pd32km33lhcwwg3hi8iyfj0y06cxpgjf-nix-conformance-iets.drv