Sync with 0.3.33 #3466

Job	Run time
cargo +beta build	35s
cargo test -Z sanitizer=thread	58s
cargo +1.71 build	41s
cargo +nightly build	36s
cargo +stable build	37s
cargo test -Z sanitizer=memory	1m 5s
cargo test (ubuntu-latest, s390x-unknown-linux-gnu)	4m 32s
docs / docs	33s
cargo test -Z sanitizer=address	1m 5s
cargo miri test	10m 35s
cargo hack check --feature-powerset	2m 48s
cargo test (ubuntu-latest, i686-unknown-linux-gnu)	3m 10s
cargo +1.36 build (futures-{core, io, sink})	2m 36s
cargo bench	55s
cargo test (ubuntu-latest)	2m 48s
tidy	18s
cargo build --target thumbv7m-none-eabi	29s
cargo build --target thumbv6m-none-eabi	24s
clippy / clippy	56s
cargo minimal-versions build	30s
cargo test (ubuntu-24.04-arm)	2m 49s
cargo test (macos-latest)	3m 44s
cargo test (ubuntu-latest, armv5te-unknown-linux-gnueabi)	7m 0s
cargo test (ubuntu-24.04-arm, armv7-unknown-linux-gnueabihf)	2m 57s
cargo test (windows-latest)	5m 52s
	58m 33s

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