these 4 derivations will be built:
  /nix/store/xv5j8rqki3nfn9z56d2wn3lzfxn2afiq-test-script.drv
  /nix/store/c533a3mz8k2bdm1kc4wwcq4fr01n1jlb-driverConfiguration.json.drv
  /nix/store/40s1n0gq3gcyflkq68g78z3qsnx7wrad-nixos-test-driver-iets-cachetest.drv
  /nix/store/9x9qfcgx1a8y9dcrifmah935x3mx3nin-container-test-run-iets-cachetest.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy