these 3 derivations will be built:
  /nix/store/kjm69g488zsg4xfwa3q41jbl9sys9qj0-rendered.drv
  /nix/store/3y3w3rirbcqzvihv5l2a9naf6bpfyaah-generated-docs.drv
  /nix/store/26km69gk46qwb0dhbir3rn47wgck57yx-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy