these 2 derivations will be built:
  /nix/store/298ikxxqpnlimybwx5qnvn9h43l7k9xj-iets-conformance-adapter.drv
  /nix/store/czmixlzgp0pj0b7wmga4z425v90wjn6d-nix-conformance-iets.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy