[topspin]

    $ rustup component list | grep installed
    cargo-x86_64-unknown-linux-gnu (installed)
    rust-docs-x86_64-unknown-linux-gnu (installed)
    rust-std-x86_64-unknown-linux-gnu (installed)
    rustc-x86_64-unknown-linux-gnu (installed)
    rustfmt-x86_64-unknown-linux-gnu (installed)
    $ find ~/.cargo -type f | wc -l
    8699

8K files... So 1 to 2 orders of magnitude less than any given frontend node_modules folder. Pretty reasonable actually.

[steveklabnik]

A big part of that is rust-docs; each page is its own file, so that you don't need a web server.