docs: mention that Clippy must be run with the MSRV (#4676)

## Motivation

In #4675 I learnt the hard way that Tokio uses Clippy on its MSRV. 

## Solution

Document this in the contributor's guide.
This commit is contained in:
Sabrina Jewson
2022-05-10 17:53:43 +00:00
committed by GitHub
parent 71e18f7b75
commit 593b042f7b
4 changed files with 50 additions and 0 deletions
+18
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@@ -131,6 +131,24 @@ cargo check --all-features
cargo test --all-features
```
Clippy must be run using the MSRV, so Tokio can avoid having to `#[allow]` new
lints whose fixes would be incompatible with the current MSRV:
<!--
When updating this, also update:
- .github/workflows/ci.yml
- README.md
- tokio/README.md
- tokio/Cargo.toml
- tokio-util/Cargo.toml
- tokio-test/Cargo.toml
- tokio-stream/Cargo.toml
-->
```
cargo +1.49.0 clippy --all-features
```
When building documentation normally, the markers that list the features
required for various parts of Tokio are missing. To build the documentation
correctly, use this command: