these 2 derivations will be built:
  /nix/store/zj1dpm3bgdxqa9k166izr4dn4qj53prg-flake-inputs.drv
  /nix/store/2g7ih794jvxhg8k898shjsikqi1v6qsh-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy