Merge branch 'dirwalk' #3876

Job	Run time
lint	3m 39s
cargo-deny (advisories)	30s
installation (win-msvc)	9m 15s
cargo-deny (bans licenses sources)	31s
installation (win-gnu)	8m 28s
pure-rust-build	1m 59s
test	21m 46s
installation (win32-msvc)	8m 22s
test-32bit (armv7-linux-androideabi)	1m 18s
installation (win32-gnu)	8m 20s
test-fast (windows-latest)	15m 54s
WebAssembly (wasm32-unknown-unknown)	1m 6s
test-fast (macos-latest)	6m 8s
WebAssembly (wasm32-wasi)	1m 4s
test-fast (ubuntu-latest)	3m 46s
	1h 32m 6s

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