Fix clippy #2901

Job	Run time
Test	43s
cargo-deny (aarch64-apple-ios)	21s
Test (charset)	49s
Test	51s
cargo-deny (aarch64-linux-android)	19s
Test (cookies)	1m 2s
build_versions (stable)	16s
Test (charset)	52s
cargo-deny (i686-pc-windows-gnu)	23s
Test (socks-proxy)	42s
build_versions (beta)	46s
Test (cookies)	1m 4s
cargo-deny (i686-pc-windows-msvc)	23s
Test (gzip)	52s
build_versions (1.71.1)	15s
Test (socks-proxy)	1m 2s
Test (brotli)	50s
Test (gzip)	53s
Test (json)	57s
cargo-deny (i686-unknown-linux-gnu)	21s
Docs	1m 43s
Test (brotli)	1m 0s
Test (native-tls)	56s
cargo-deny (wasm32-unknown-unknown)	21s
Test (json)	1m 3s
Test (rustls-no-provider)	54s
cargo-deny (x86_64-apple-darwin)	23s
Test (native-tls)	59s
Lint	1m 42s
cargo-deny (x86_64-apple-ios)	19s
cargo-deny (x86_64-pc-windows-gnu)	23s
cargo-deny (x86_64-pc-windows-msvc)	22s
cargo-deny (x86_64-unknown-linux-gnu)	21s
cargo-deny (x86_64-unknown-redox)	18s
	24m 25s

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