warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
this derivation will be built:
  /nix/store/y2ykc0w6h1ag5xry1byd0lf6abkjmd9c-inputDerivation-effect-docs.drv
building '/nix/store/y2ykc0w6h1ag5xry1byd0lf6abkjmd9c-inputDerivation-effect-docs.drv'...