these 2 derivations will be built:
  /nix/store/vk0r22vv2gk3xb9krfsrpg8m4bx326f1-flake-inputs.drv
  /nix/store/5i9bcsl7xxffwlkca0mr55kp52gsvjkj-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy