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Replace lost videos with plain text #1513

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88 changes: 68 additions & 20 deletions posts/rustup.md
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Original file line number Diff line number Diff line change
Expand Up @@ -86,40 +86,88 @@ Let's start with something simple: installing multiple Rust toolchains. In this
example I create a new library, 'hello', then test it using rustc 1.8, then use
rustup to install and test that same crate on the 1.9 beta.

<div style="height:420px;margin:20px;">
<script type="text/javascript"
src="https://asciinema.org/a/37cr19qny7451wenmpb113s1r.js"
id="asciicast-37cr19qny7451wenmpb113s1r"
async
data-speed="2"
></script>
</div>

<!--
```
```console
$ cargo new hello && cd hello
$ rustc --version
rustc 1.8.0 (db2939409 2016-04-11)
$ cargo test
Compiling hello v0.1.0 (file:///home/user/hello)
Running target/debug/hello-b4f774924ded32e4

running 1 test
test tests::it_works ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured

Doc-tests hello

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured
$ rustup install beta
info: syncing channel updates for 'beta-x86_64-unknown-linux-gnu'
info: latest update on 2016-04-11, rust version 1.9.0-beta (e4e8b6668 2016-04-11)
info: downloading component 'cargo'
info: downloading component 'rust-docs'
info: downloading component 'rust-std'
info: downloading component 'rustc'
info: installing component 'cargo'
info: installing component 'rust-docs'
info: installing component 'rust-std'
info: installing component 'rustc'

beta-x86_64-unknown-linux-gnu installed - rustc 1.9.0-beta (e4e8b6668 2016-04-11)

$ rustup run beta rustc --version
rustc 1.9.0-beta (e4e8b6668 2016-04-11)
$ rustup run beta cargo test
Compiling hello v0.1.0 (file:///home/user/hello)
Running target/debug/hello-f4f25bc615ec63f5

running 1 test
test tests::it_works ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured

Doc-tests hello

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured
```
-->

That's an easy way to verify your code works on the next Rust release. That's
good Rust citizenship!

We can use `rustup show` to show us the installed toolchains, and `rustup
update` to keep them up to date with Rust's releases.

<div style="height:420px;margin:20px;">
<script type="text/javascript"
src="https://asciinema.org/a/ek7vdmfltncmgnip8cnuc6ua4.js"
id="asciicast-ek7vdmfltncmgnip8cnuc6ua4"
async
data-speed="2"
></script>
</div>
```console
$ rustup show
Default host: x86_64-unknown-linux-gnu
rustup home: /home/user/.rustup

installed toolchains
--------------------

stable-x86_64-unknown-linux-gnu (default)
beta-x86_64-unknown-linux-gnu

active toolchain
----------------

stable-x86_64-unknown-linux-gnu (default)
rustc 1.8.0 (db2939409 2016-04-11)

$ rustup update
info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'
info: syncing channel updates for 'beta-x86_64-unknown-linux-gnu'

stable-x86_64-unknown-linux-gnu unchanged - rustc 1.8.0 (db2939409 2016-04-11)
beta-x86_64-unknown-linux-gnu unchanged - rustc 1.9.0-beta (e4e8b6668 2016-04-11)

info: cleaning up downloads & tmp directories
```

Finally, rustup can also change the default toolchain with `rustup default`:

Expand Down