these 2 derivations will be built:
  /nix/store/bwa1iw5z32mqw951qv4nbffv6gxq7qdr-flake-inputs.drv
  /nix/store/kw2jgs2f81hnxyjbcwsdswi5zax3qywr-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy