improvements #5603

Job	Run time
cargo-deny	29s
cargo-deny-advisories	27s
lint	3m 50s
pure-rust-build	2m 1s
test	8m 23s
test-32bit (i386)	4m 20s
test-fast (windows-latest)	2m 50s
test-fixtures-windows	15m 20s
test-32bit (arm32v7)	4m 13s
test-journey	3m 53s
test-fast (macos-latest)	2m 50s
test-fast (ubuntu-latest)	2m 57s
WebAssembly (wasm32-unknown-unknown)	1m 7s
test-fast (ubuntu-22.04-arm)	3m 4s
WebAssembly (wasm32-wasip1)	42s
check-blocking	5s
check-packetline (ubuntu-latest)	8s
Tests pass	1s
	56m 40s

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