these 2 derivations will be built:
  /nix/store/zfir1mqk5y55kx41m3i3z6nyd696gxbl-flake-inputs.drv
  /nix/store/a9gdlianpc4fcqmzv4mjg29c1rgds9j5-check-flake-inputs.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy