warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
this derivation will be built:
  /nix/store/gfj2g5iclhf44v421cipq756d2qi0ycx-inputDerivation-effect-docs.drv
building '/nix/store/gfj2g5iclhf44v421cipq756d2qi0ycx-inputDerivation-effect-docs.drv'...