this derivation will be built:
  /nix/store/9l0dms6k4k6z9jky7cwrgbh7xjadj8zy-inputDerivation-effect-docs.drv
building '/nix/store/9l0dms6k4k6z9jky7cwrgbh7xjadj8zy-inputDerivation-effect-docs.drv'...
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy