these 2 derivations will be built:
  /nix/store/akhyv6m3q3prar1bcssqwgi2yj3v41ns-flake-inputs.drv
  /nix/store/kdwgzga26bpxa50qdddi7rqvqcfsvv6p-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy