rustHow to change Rust version

Changing the version of Rust you are using is a relatively simple process.

The following ## Code example shows how to use the rustup command to change the version of Rust you are using:

rustup default <version>

For example, to change to version 1.45.0, you would use the command:

rustup default 1.45.0

The output of this command should look something like this:

info: syncing channel updates for '1.45.0-x86_64-unknown-linux-gnu'
info: latest update on 2020-07-02, rust version 1.45.0 (5c1f21c3b 2020-06-15)
info: downloading component 'rustc'
info: downloading component 'rust-std'
info: downloading component 'cargo'
info: downloading component 'rust-docs'
info: installing component 'rustc'
info: installing component 'rust-std'
info: installing component 'cargo'
info: installing component 'rust-docs'
info: default toolchain set to '1.45.0-x86_64-unknown-linux-gnu'

Here is a ## Explanation of the code parts:

1. rustup: This is the command used to manage Rust versions.
2. default: This is the subcommand used to set the default version of Rust.
3. <version>: This is the version of Rust you want to set as the default.

Helpful links:

1. Rustup Documentation: This is the official documentation for the rustup command.
2. Rust Version History: This page contains a list of all the versions of Rust released.

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