Rust

Add MSRV minimal versions in CI #265

Job	Run time
Style Checks (rustfmt)	12s
Code Coverage (stable/ubuntu-latest)	1m 4s
Integration Tests (Rust Stable with curl-client)	1m 1s
README Format Check	1m 1s
Integration Tests (Rust Stable with h1-client)	59s
Integration Tests (Rust Stable with h1-client-rustls)	59s
Unit and Doc Tests (Rust MSRV on ubuntu-latest)	19s
Integration Tests (Rust Stable with hyper-client)	1m 0s
Unit and Doc Tests (Rust MSRV on windows-latest)	36s
Integration Tests (Rust Stable with reqwest-client-rustls)	1m 3s
Style Check (clippy)	53s
Unit and Doc Tests (Rust MSRV on macOS-latest)	23s
Integration Tests (Rust Stable with reqwest-client-native-tls)	59s
Unit and Doc Tests (Rust Stable on ubuntu-latest)	32s
Integration Tests (Rust Stable with reqwest-client-native-tls-vendored)	1m 5s
Unit and Doc Tests (Rust Stable on windows-latest)	17s
Unit and Doc Tests (Rust Stable on macOS-latest)	34s
Unit and Doc Tests (Rust Beta on ubuntu-latest)	52s
Unit and Doc Tests (Rust Beta on windows-latest)	47s
Unit and Doc Tests (Rust Beta on macOS-latest)	51s
Unit and Doc Tests (Rust Nightly on ubuntu-latest)	48s
Unit and Doc Tests (Rust Nightly on windows-latest)	24s
Unit and Doc Tests (Rust Nightly on macOS-latest)	51s
pages	1s
	17m 31s

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