these 3 derivations will be built:
  /nix/store/hgmy74z0p74daqsys87n6kib5hlrpc79-iets-0.1.0.drv
  /nix/store/hl4z0ac49yx6s07fnyk6b3za1nzvrmy6-iets-conformance-adapter.drv
  /nix/store/g2dcz0byp77csyfp98ar3g7q4c7n5gn4-nix-conformance-iets.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy