Rust

Fix clippy #592

Job	Run time
cargo check	2m 13s
Check cargo fmt	37s
build with wasm-pack	1m 55s
cargo test (mac)	12m 16s
Verify MSRV	6m 10s
Verify Vendored Code	34s
cargo test (win64)	28m 20s
Run sqllogictest with Postgres runner	3m 15s
cargo test doc (amd64)	9m 44s
clippy	4m 9s
check Cargo.toml formatting	1m 14s
cargo doc	3m 10s
cargo test (amd64)	8m 34s
cargo test datafusion-cli (amd64)	2m 49s
cargo examples (amd64)	6m 4s
cargo test pyarrow (amd64)	2m 16s
verify benchmark results (amd64)	9m 27s
cargo test hash collisions (amd64)	8m 21s
check configs.md is up-to-date	2m 5s
	1h 53m 13s

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