these 3 derivations will be built:
  /nix/store/favmkbw5q5nf42fb7nr5jhrwx7jk7pc2-rendered.drv
  /nix/store/fvyjwfsylx619bg6jah2cbxnydhqacrh-generated-docs.drv
  /nix/store/kgsw2fzmg3d621k02m2pradyk9dzfn8x-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy