Rust

add back cast #214

Job	Run time
cargo check	7m 15s
Check License Header	2m 12s
build with wasm-pack	3m 8s
cargo test (macos)	16m 26s
cargo test (macos-aarch64)	12m 10s
Verify Vendored Code	49s
cargo test (win64)	1h 16m 8s
Verify MSRV (Min Supported Rust Version)	8m 46s
Check cargo fmt	42s
cargo test datafusion-cli (amd64)	4m 49s
cargo test (amd64)	12m 10s
check Cargo.toml formatting	3m 1s
clippy	1m 59s
check configs.md and ***_functions.md is up-to-date	3m 51s
cargo test hash collisions (amd64)	28m 38s
cargo doc	4m 35s
cargo test doc (amd64)	18m 39s
Run sqllogictest with Postgres runner	4m 36s
cargo examples (amd64)	14m 23s
cargo test pyarrow (amd64)	2m 56s
verify benchmark results (amd64)	14m 56s
	4h 2m 9s

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