these 2 derivations will be built:
  /nix/store/6i6gs9ypaxg8gny5v3v7qnln013d9cd8-flake-inputs.drv
  /nix/store/2qv192cq4v8gfc9yyyqvrn29hd2gnvv5-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy