fix: port fix discard all message on receiver droped #3197

Job	Run time
codegen	8s
dependencies	14s
clippy	12s
careful	2m 1s
features (msrv)	1m 8s
miri (channel)	1m 59s
features (nightly)	23s
rustfmt	8s
miri (others)	1m 59s
test (1.63, ubuntu-latest)	1m 57s
test (1.63, ubuntu-24.04-arm)	2m 1s
docs	11s
test (1.63, windows-latest)	1m 51s
loom	1m 8s
test (stable, ubuntu-latest)	1m 42s
test (stable, ubuntu-24.04-arm)	8s
san	2m 0s
shellcheck	51s
test (stable, windows-latest)	1m 23s
test (nightly, ubuntu-latest)	2m 0s
test (nightly, ubuntu-24.04-arm)	2m 0s
test (nightly, windows-latest)	1m 36s
test (nightly, ubuntu-latest, i686-unknown-linux-gnu)	1m 46s
test (nightly, ubuntu-24.04-arm, armv7-unknown-linux-gnueabihf)	1m 59s
test (nightly, ubuntu-latest, armv5te-unknown-linux-gnueabi)	1m 59s
test (stable, ubuntu-latest, sparc64-unknown-linux-gnu)	1m 42s
	34m 26s

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