these 2 derivations will be built:
  /nix/store/xrsw37cxgw5lpjyr84dz4ynf978kp46r-flake-inputs.drv
  /nix/store/sw8wyz1f1q396fvrlby66104wqvrlmnb-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy