Repository: diesel-rs/diesel (language: rust)

Issue:
Invalid MSRV
## Setup

### Versions

- **Rust:** `1.56.0` (as per `rust-toolchain`)
- **Diesel:** `5c0452eae52ebd5ec28f489ce1d395c4330936c2`
- **Database:** N/A
- **Operating System** Linux

### Feature Flags

- **diesel:** N/A

## Problem Description

Unable to cargo check the codebase:

```
info: syncing channel updates for '1.56.0-x86_64-unknown-linux-gnu'
info: latest update on 2021-10-21, rust version 1.56.0 (09c42c458 2021-10-18)
info: downloading component 'cargo'
info: downloading component 'clippy'
info: downloading component 'rust-docs'
info: downloading component 'rust-std'
info: downloading component 'rustc'
info: downloading component 'rustfmt'
info: installing component 'cargo'
info: installing component 'clippy'
info: installing component 'rust-docs'
info: installing component 'rust-std'
info: installing component 'rustc'
info: installing component 'rustfmt'
    Updating crates.io index
  Downloaded dotenvy v0.15.1
  Downloaded clap_complete v3.2.3
  Downloaded clap v3.2.11
  Downloaded libsqlite3-sys v0.24.2
  Downloaded 4 crates (5.0 MB) in 1.12s (largest was `libsqlite3-sys` at 4.8 MB)
error: package `clap_complete v3.2.3` cannot be built because it requires rustc 1.56.1 or newer, while the currently active rustc version is 1.56.0
```


Discussion / hints:

Fix patch:
diff --git a/rust-toolchain b/rust-toolchain
index 3ebf789f5a8d..b77a81dcb12a 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,1 +1,1 @@
-1.56.0
+1.62.1


Test patch: