these 3 derivations will be built:
  /nix/store/3ydzv9clnm8pjskr672nb6hl9kkpy9k9-rendered.drv
  /nix/store/j3kc46y6chk6v8x8627c51rh0ic5krlj-generated-docs.drv
  /nix/store/h23n8gngh8sk3bhg0xwh3dmiv93g7i1w-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy