these 2 derivations will be built:
  /nix/store/ai8pw4milsqm164b7k70958iq4nivyvr-flake-inputs.drv
  /nix/store/i4xkw7bbqy3dlvlrdw4my22smv1x4g1w-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy