cargo install --divert?

Describe the problem you are trying to solve
Some tools (reportedly, a "brew doctor"), dislike when some executables have some names.
Sometimes executable names collide or just aren't that good in the first place.

A mechanism similar to dpkg-divert can solve both of those issues, by allowing per-install renames (or, when used with a persistent config like cargo-install-update-config, per-user renames) of installed executables.

This amounts to a much more versatile and non-upstream-intrusive equivalent of Cargo.toml specifying two executables and then filtering any of them out with --bin.

Describe the solution you'd like
cargo install --divert treesize=trize treesize would install the treesize binary of the treesize crate as trize, presumably with ~/.cargo/.crates.toml containing something in the likes of "treesize 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = ["trize.exe"].

Notes
This could also be done outside of cargo, and, if the maintainers decide against this, I'll end up implementing it in cargo-update, but I'd prefer to not rewrite cargo state with no stability guarantees.

If, however, the maintainers like this idea, I could (at least try to) implement this for cargo in the coming weeks.

Start with the cargo install command and the ~/.cargo/.crates.toml state described in the proposal, then determine how per-install executable renames should be represented and persisted. Done means a decided, documented behavior for --divert, including the treesize=trize example and compatibility with existing install tracking.