these 2 derivations will be built:
  /nix/store/30dfv3b6v14295px5ab1nn0izspy6ln1-flake-inputs.drv
  /nix/store/l5v1j81911iyiy4wzh269znbn5lvfd8c-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy