these 3 derivations will be built:
  /nix/store/6gmkawgfxrsxf2k3bl1zplkf1a34b0kp-rendered.drv
  /nix/store/ksjzbijdvnhpma0jzkvg3jllkppj6nk8-generated-docs.drv
  /nix/store/yw4hmaci9zj9cm2h9ixp8sjm7bbmp2f2-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy