these 2 derivations will be built:
  /nix/store/9j6ggc550faqx9y3zpsrpk6gbz5grqdy-flake-inputs.drv
  /nix/store/0f7vxncj1zjjsy8m31m2wxly3bi9kjml-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy