Rust

Simplifications #20

Job	Run time
cargo test (macos)	9m 15s
cargo check	4m 35s
Check cargo fmt	45s
build with wasm-pack	2m 21s
cargo test (macos-aarch64)	5m 10s
Verify MSRV (Min Supported Rust Version)	6m 54s
Verify Vendored Code	58s
cargo test (win64)	11m 16s
check Cargo.toml formatting	1m 33s
cargo test hash collisions (amd64)	6m 39s
clippy	2m 49s
check configs.md is up-to-date	2m 26s
cargo doc	3m 35s
cargo test datafusion-cli (amd64)	3m 32s
cargo test doc (amd64)	11m 2s
cargo test (amd64)	6m 32s
cargo examples (amd64)	8m 45s
Run sqllogictest with Postgres runner	3m 1s
cargo test pyarrow (amd64)	2m 25s
verify benchmark results (amd64)	7m 14s
	1h 40m 47s

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