net/http: TestHandlerFinishSkipBigContentLengthRead failures

[gopherbot]

#!watchflakes
default <- pkg == "net/http" && test == "TestHandlerFinishSkipBigContentLengthRead"

Issue created automatically to collect these failures.

Example (log):

panic: test timed out after 3m0s
running tests:
	TestHandlerFinishSkipBigContentLengthRead (2m59s)

runtime.gopark(0x8550540, 0x8c25d70, 0xe, 0x17, 0x2)
	/tmp/workdir/go/src/runtime/proc.go:398 +0xfa fp=0x9238f00 sp=0x9238eec pc=0x808608a
runtime.chanrecv(0x8c25d40, 0x0, 0x1)
	/tmp/workdir/go/src/runtime/chan.go:583 +0x397 fp=0x9238f3c sp=0x9238f00 pc=0x804f707
runtime.chanrecv1(0x8c25d40, 0x0)
	/tmp/workdir/go/src/runtime/chan.go:442 +0x1c fp=0x9238f50 sp=0x9238f3c pc=0x804f33c
net/http_test.TestHandlerFinishSkipBigContentLengthRead(0x8ea9680)
	/tmp/workdir/go/src/net/http/serve_test.go:4602 +0x219 fp=0x9238f98 sp=0x9238f50 pc=0x8414a79
testing.tRunner(0x8ea9680, 0x854f4d0)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "net/http" && test == "TestHandlerFinishSkipBigContentLengthRead"

2023-09-13 21:00 netbsd-386-9_3 go@399b2a4b net/http.TestHandlerFinishSkipBigContentLengthRead (log)

panic: test timed out after 3m0s
running tests:
	TestHandlerFinishSkipBigContentLengthRead (2m59s)

runtime.gopark(0x8550540, 0x8c25d70, 0xe, 0x17, 0x2)
	/tmp/workdir/go/src/runtime/proc.go:398 +0xfa fp=0x9238f00 sp=0x9238eec pc=0x808608a
runtime.chanrecv(0x8c25d40, 0x0, 0x1)
	/tmp/workdir/go/src/runtime/chan.go:583 +0x397 fp=0x9238f3c sp=0x9238f00 pc=0x804f707
runtime.chanrecv1(0x8c25d40, 0x0)
	/tmp/workdir/go/src/runtime/chan.go:442 +0x1c fp=0x9238f50 sp=0x9238f3c pc=0x804f33c
net/http_test.TestHandlerFinishSkipBigContentLengthRead(0x8ea9680)
	/tmp/workdir/go/src/net/http/serve_test.go:4602 +0x219 fp=0x9238f98 sp=0x9238f50 pc=0x8414a79
testing.tRunner(0x8ea9680, 0x854f4d0)

— watchflakes

[bcmills]

Duplicate of #62622