these 2 derivations will be built:
  /nix/store/akl9gz69ddws258irf00damc9l7kbrai-flake-inputs.drv
  /nix/store/ib2720akc6dgxmm2554xkbwyfhppslj4-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy