these 3 derivations will be built:
  /nix/store/czxilsssnslq1kgm5bhw351gs39k8p4h-rendered.drv
  /nix/store/pnmjws3xg67x1sz8vg8syc1a09bdx9v7-generated-docs.drv
  /nix/store/pghbj2gg2xxvjib316vhbxhxc4wb2mhz-nix-shell.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy