these 4 derivations will be built:
  /nix/store/p52jdll43rcrw182i45c8yz2wrrmv1qm-iets-0.1.0.drv
  /nix/store/s11vpyrb6hcs78827vzy3yvavqk24vqw-iets-fuzz-diff-0.0.0.drv
  /nix/store/bv51knmfas2y83422sxj0czqbnkv01cj-iets-conformance-adapter.drv
  /nix/store/q2dwrz3l53x93f9wnxy9806bcvsjcpfm-nix-conformance-iets.drv