bootstrap: convert rustc-docs to use Tarball
bootstrap: convert rustc-docs to use Tarball

graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust