these 2 derivations will be built:
  /nix/store/b14z4f87iqi9q56pqyfw09nd9llp3lbb-flake-inputs.drv
  /nix/store/vnpyhq7aaz2lgx2ff0fx1vb57kxwzd3p-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy