this derivation will be built:
  /nix/store/xkvd5sl0lrpxl20l5cwbjiqddz50dbf2-iets-examples-0.1.0.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy