these 2 derivations will be built:
  /nix/store/74658r2kbq7f6z2xq7zvqgn55vbw8nz5-llm-agents-site.drv
  /nix/store/pjzg9iygvg91by4b2s975c2x2krgp2hq-check-site.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy