Rust

Add metrics collector to SchedulerState and instrument executor and p… #66

Job	Run time
windows test	10m 50s
Lint	34s
verify benchmark results (amd64)	16m 31s
test linux crates	5m 58s
linux build test	4m 20s
Check Cargo.toml formatting (amd64, stable)	1m 18s
macos test	8m 22s
check linux workspace	2m 41s
test linux balista	5m 42s
Clippy (amd64, stable)	3m 54s
cargo doc	0s
	1h 0m 10s

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