these 2 derivations will be built:
  /nix/store/c483c0vnqxjcp3azzba8qj9ypba9hzpr-flake-inputs.drv
  /nix/store/gdgnclgydbd8jzi97vndhvcgr5zd0kr6-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy