如何使用 cargo 更新板条箱注册表（索引）

Question

using cargo (version 1.46.0 (04488afe3 2020-08-24)) or any other rust toolchain, what is the official way to force the update of the crate registry (crate.io index) without deleting manually ~/.cargo/registry/index ?

Answer 1

I've done this by creating a temporary cargo project and adding a small dependency to it. Something like this:

mkdir /tmp/deleteme \
    && cd /tmp/deleteme \
    && cargo init \
    && cargo add serde \
    && rm -rf /tmp/deleteme

You should immediately see the message:

Updating crates.io index