these 3 derivations will be built:
  /nix/store/gf4sf33cp88smkhr8fspj0z01inifxw0-rendered.drv
  /nix/store/kzhy02xp6c4j10hrqwpl560zi1fppc8f-generated-docs.drv
  /nix/store/g67sm7jxyfy9lv5pm174kz9wanx9cchm-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy