these 2 derivations will be built:
  /nix/store/llpq07f0ra5ad8j59hh22jq3jwg8n88l-collie-1.20.0.drv
  /nix/store/8xs48i48b7p6ad50vc3wfdzzpj66y8yi-check-collie.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy