Rust

refactor `TreeNodeRewriter` #64

Job	Run time
cargo check	2m 18s
Check cargo fmt	41s
build with wasm-pack	1m 57s
cargo test (mac)	14m 37s
Verify MSRV	6m 30s
Verify Vendored Code	45s
cargo test (win64)	39m 6s
check Cargo.toml formatting	1m 22s
clippy	4m 5s
cargo test hash collisions (amd64)	8m 35s
check configs.md is up-to-date	2m 11s
cargo doc	3m 5s
cargo test (amd64)	8m 40s
cargo test datafusion-cli (amd64)	2m 47s
cargo test doc (amd64)	9m 22s
cargo examples (amd64)	7m 6s
Run sqllogictest with Postgres runner	3m 1s
cargo test pyarrow (amd64)	2m 20s
verify benchmark results (amd64)	9m 26s
	2h 7m 54s

Provide feedback