these 2 derivations will be built:
  /nix/store/nhahp1zavjf76bfzy2ara8dwaf6xkifz-flake-inputs.drv
  /nix/store/s88lwaszijwpnck5z95lf4q04n2lqq4p-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy