these 3 derivations will be built:
  /nix/store/1is5h46syxkz60xia69gf7wp2n1bik57-rendered.drv
  /nix/store/az8qi395i2kjyf4scfac4d8zq712510f-generated-docs.drv
  /nix/store/vm8pvxmw1lbw1vza7n0h0aafmzi1jgfk-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy