Rust

Have one thread per chain on benchmark #12215

Job	Run time
execution-wasmtime-test	1m 25s
remote-net-test	19m 8s
benchmark-test	3m 17s
check-outdated-cli-md	1m 45s
default-features-and-witty-integration-test	24m 50s
ethereum-tests	8m 46s
storage-service-tests	23m 33s
wasm-application-test	10m 22s
lint-cargo-clippy	8m 30s
lint-cargo-fmt	29s
lint-cargo-machete	25s
lint-cargo-sort	25s
lint-check-copyright-headers	18s
lint-unexpected-chain-load-operations	5s
lint-wasm-applications	3m 59s
web	4m 58s
lint-cargo-doc	4m 36s
lint-check-all-features	17m 5s
lint-check-for-outdated-readme	40s
lint-check-linera-service-graphql-schema	1m 23s
	2h 15m 59s

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