warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
this derivation will be built:
  /nix/store/k4jfglpg9aa9p238m70q1hi3a4j0d97y-inputDerivation-effect-docs.drv
building '/nix/store/k4jfglpg9aa9p238m70q1hi3a4j0d97y-inputDerivation-effect-docs.drv'...