Rust

fix(ballista): recover from transient shuffle-fetch connection failures #323

Job	Run time
check linux workspace	2m 56s
macos test	11m 20s
Lint	36s
windows test	13m 56s
linux build test	4m 8s
Check Cargo.toml formatting (amd64, stable)	1m 3s
Clippy (amd64, stable)	4m 26s
test linux crates	7m 31s
verify benchmark results (amd64)	13m 56s
test linux balista	7m 53s
cargo doc	4m 2s
	1h 11m 47s

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