Rust

add backward compatibility #43

Job	Run time
cargo check	8m 5s
Check cargo fmt	43s
build with wasm-pack	3m 6s
cargo test (macos)	10m 1s
cargo test (macos-aarch64)	9m 50s
Verify MSRV (Min Supported Rust Version)	6m 12s
Verify Vendored Code	50s
cargo test (win64)	42m 28s
cargo test (amd64)	9m 38s
cargo test datafusion-cli (amd64)	3m 40s
check Cargo.toml formatting	2m 56s
clippy	5m 32s
cargo test hash collisions (amd64)	9m 15s
cargo doc	3m 34s
cargo test doc (amd64)	13m 36s
cargo examples (amd64)	12m 42s
Run sqllogictest with Postgres runner	3m 25s
cargo test pyarrow (amd64)	2m 55s
verify benchmark results (amd64)	11m 9s
check configs.md is up-to-date	2m 51s
	2h 42m 28s

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