these 4 derivations will be built:
  /nix/store/1gp4lqlxrizdxsj1clkk6idljir2xwci-iets-fuzz-diff-0.0.0.drv
  /nix/store/76pq1n83636vh8mbx5qr2fibzdmc285z-iets-0.1.0.drv
  /nix/store/knxmi8wds5igpy0a9c8jhi6n7jkkhchd-iets-conformance-adapter.drv
  /nix/store/pp71dbnvjqfdbdciljjipk2n5pxzvc8j-nix-conformance-iets.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