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Document automatic installation behavior via rustup show #2797

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Jul 17, 2021
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Document automatic installation behavior via rustup show #2797

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Document automatic installation behavior via `rustup show`
Rustin170506 Jun 17, 2021
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Add note and link to the issue
Rustin170506 Jun 20, 2021
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6 changes: 5 additions & 1 deletion doc/src/overrides.md
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Expand Up @@ -19,7 +19,10 @@ the directory tree toward the filesystem root, and a `rust-toolchain.toml` file
that is closer to the current directory will be preferred over a directory
override that is further away.

To verify which toolchain is active use `rustup show`.
To verify which toolchain is active, you can use `rustup show`,
which will also try to install the corresponding
toolchain if the current one has not been installed according to the above rules.
(Please note that this behavior is subject to change, as detailed in issue [#1397].)

[toolchain]: concepts/toolchains.md
[toolchain override shorthand]: #toolchain-override-shorthand
Expand Down Expand Up @@ -141,3 +144,4 @@ rustup default nightly-2020-07-27
```

[installed]: installation/index.md
[#1397]: https://github.com/rust-lang/rustup/issues/1397