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change rustup override add to rustup override set (#843)

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Roberto Wesley Overdijk
2020-08-02 13:43:51 +02:00
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commit 3c070c6dc0
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blog/content/second-edition/posts/02-minimal-rust-kernel/index.md
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@@ -90,7 +90,7 @@ As you may remember, we built the freestanding binary through `cargo`, but depen
### Installing Rust Nightly
Rust has three release channels: _stable_, _beta_, and _nightly_. The Rust Book explains the difference between these channels really well, so take a minute and [check it out](https://doc.rust-lang.org/book/appendix-07-nightly-rust.html#choo-choo-release-channels-and-riding-the-trains). For building an operating system we will need some experimental features that are only available on the nightly channel, so we need to install a nightly version of Rust.
To manage Rust installations I highly recommend [rustup]. It allows you to install nightly, beta, and stable compilers side-by-side and makes it easy to update them. With rustup you can use a nightly compiler for the current directory by running `rustup override add nightly`. Alternatively, you can add a file called `rust-toolchain` with the content `nightly` to the project's root directory. You can check that you have a nightly version installed by running `rustc --version`: The version number should contain `-nightly` at the end.
To manage Rust installations I highly recommend [rustup]. It allows you to install nightly, beta, and stable compilers side-by-side and makes it easy to update them. With rustup you can use a nightly compiler for the current directory by running `rustup override set nightly`. Alternatively, you can add a file called `rust-toolchain` with the content `nightly` to the project's root directory. You can check that you have a nightly version installed by running `rustc --version`: The version number should contain `-nightly` at the end.
[rustup]: https://www.rustup.rs/