various improvements #5482

Job	Run time
test	10m 41s
pure-rust-build	2m 14s
test-fixtures-windows	15m 46s
lint	3m 49s
test-32bit	5m 38s
test-32bit-cross (armv7-linux-androideabi)	1m 9s
cargo-deny	27s
cargo-deny-advisories	30s
check-blocking	3s
check-packetline (ubuntu-latest)	5s
test-fast (windows-latest)	13m 43s
test-fast (macos-latest)	3m 11s
test-fast (ubuntu-latest)	3m 43s
test-journey	3m 54s
WebAssembly (wasm32-unknown-unknown)	1m 7s
WebAssembly (wasm32-wasip1)	34s
Tests pass	1s
	1h 6m 35s

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