stream: observe abort while awaiting pipeTo source #8207

Job	Run time
Build slim tarball	1m 3s
aarch64-linux: Cache V8 build	24s
x86_64-darwin: with shared libraries	42m 12s
x86_64-linux: with shared libraries	29m 58s
aarch64-darwin: with shared libraries	24m 26s
aarch64-linux: with shared boringssl-0.20260526.0	25m 20s
aarch64-linux: with shared openssl-3.0.20	25m 28s
aarch64-linux: with shared openssl-1.1.1w	24m 58s
aarch64-linux: with shared openssl-4.0.0	24m 22s
aarch64-linux: with shared openssl-3.6.2	25m 6s
aarch64-linux: with shared openssl-3.5.6	25m 42s
	4h 8m 59s

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