Docs : Online Documentation should list what its installed and where.

[rrichardson]

Having run a few newbs through their first rustup process, the feedback I got was: "I don't know what it just did or why... It would nice if it told me what it installed so I could kick the tires on my new tools"

Perhaps 2 lines for each binary:

Tool name :  
/path/to/file -
Brief description of tool

e.g.

Rustup completed successfully.
The following tools were installed : 
Cargo - Your Command-Line gateway into the Rust Ecosystem!
/usr/local/bin/cargo

Rustc - The Infamous Rust Compiler
/usr/local/bin/rustc

...

A related feature for power users then, might a --quiet option.