Rust

Add exponential backoff and log suppression for scheduler disconnection #61

Job	Run time
macos test	11m 36s
verify benchmark results (amd64)	16m 24s
test linux crates	6m 45s
check linux workspace	2m 52s
Lint	36s
linux build test	4m 6s
test linux balista	5m 58s
windows test	12m 30s
Clippy (amd64, stable)	3m 47s
Check Cargo.toml formatting (amd64, stable)	1m 14s
cargo doc	3m 39s
	1h 9m 27s

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