dirwalk ignores non-regular files #5310

Job	Run time
check-blocking	5s
cargo-deny	34s
cargo-deny-advisories	33s
check-packetline (ubuntu-latest)	4s
lint	4m 24s
pure-rust-build	1m 59s
test	11m 9s
test-32bit	5m 35s
test-32bit-cross (armv7-linux-androideabi)	1m 4s
test-fast (windows-latest)	14m 59s
test-fixtures-windows	13m 31s
test-journey	6m 7s
test-fast (macos-latest)	2m 51s
WebAssembly (wasm32-unknown-unknown)	1m 8s
test-fast (ubuntu-latest)	3m 33s
WebAssembly (wasm32-wasi)	1m 2s
Tests pass	1s
	1h 8m 39s

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