Rust

Cluster RPC customizations to support TLS and custom headers #101

Job	Run time
test linux crates	6m 35s
windows test	12m 18s
check linux workspace	2m 38s
Clippy (amd64, stable)	3m 44s
macos test	10m 4s
test linux balista	6m 28s
Lint	35s
Check Cargo.toml formatting (amd64, stable)	1m 13s
verify benchmark results (amd64)	16m 0s
linux build test	4m 0s
cargo doc	3m 56s
	1h 7m 31s

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