Add note about older rust versions on release branches (#19681)

This commit is contained in:
steviez
2021-09-07 15:01:51 -05:00
committed by GitHub
parent 24fd47a32d
commit cea783e5fd

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@ -19,12 +19,18 @@ $ source $HOME/.cargo/env
$ rustup component add rustfmt
```
Please make sure you are always using the latest stable rust version by running:
When building the master branch, please make sure you are using the latest stable rust version by running:
```bash
$ rustup update
```
When building a specific release branch, you should check the rust version in `ci/rust-version.sh` and if necessary, install that version by running:
```bash
$ rustup install VERSION
```
Note that if this is not the latest rust version on your machine, cargo commands may require an [override](https://rust-lang.github.io/rustup/overrides.html) in order to use the correct version.
On Linux systems you may need to install libssl-dev, pkg-config, zlib1g-dev, etc. On Ubuntu:
```bash