Rust

Improve MemoryCatalogProvider default impl block placement #19639

Job	Run time
Check cargo fmt	45s
cargo test (mac)	10m 17s
build with wasm-pack	2m 29s
Verify MSRV	11m 41s
cargo check	3m 13s
Verify Vendored Code	1m 11s
cargo test (win64)	25m 39s
cargo test doc (amd64)	16m 16s
cargo test datafusion-cli (amd64)	4m 20s
cargo test (amd64)	12m 14s
cargo examples (amd64)	6m 47s
clippy	6m 38s
cargo test hash collisions (amd64)	11m 35s
check configs.md is up-to-date	3m 46s
check Cargo.toml formatting	1m 46s
cargo doc	5m 40s
Run sqllogictest with Postgres runner	4m 34s
cargo test pyarrow (amd64)	3m 3s
verify benchmark results (amd64)	15m 58s
	2h 27m 52s

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