net/http: TestResponseControllerSetFutureWriteDeadline failures

[gopherbot]

#!watchflakes
post <- pkg == "net/http" && test == "TestResponseControllerSetFutureWriteDeadline"

Issue created automatically to collect these failures.

Example (log):

--- FAIL: TestResponseControllerSetFutureWriteDeadline (0.00s)
    --- FAIL: TestResponseControllerSetFutureWriteDeadline/h1 (0.00s)
        responsecontroller_test.go:146: unexpected connection error: Get "http://127.0.0.1:51242": EOF
2022/11/16 13:41:33 http: TLS handshake error from 127.0.0.1:51729: EOF
2022/11/16 13:41:57 http: TLS handshake error from 127.0.0.1:51866: read tcp 127.0.0.1:51865->127.0.0.1:51866: use of closed network connection
2022/11/16 13:42:01 http2: server: error reading preface from client 127.0.0.1:52677: bogus greeting "CONNECT golang.fake.tld:"

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && test == "TestResponseControllerSetFutureWriteDeadline"

2022-11-16 13:26 windows-amd64-longtest go@5947a07d net/http.TestResponseControllerSetFutureWriteDeadline (log)

--- FAIL: TestResponseControllerSetFutureWriteDeadline (0.00s)
    --- FAIL: TestResponseControllerSetFutureWriteDeadline/h1 (0.00s)
        responsecontroller_test.go:146: unexpected connection error: Get "http://127.0.0.1:51242": EOF
2022/11/16 13:41:33 http: TLS handshake error from 127.0.0.1:51729: EOF
2022/11/16 13:41:57 http: TLS handshake error from 127.0.0.1:51866: read tcp 127.0.0.1:51865->127.0.0.1:51866: use of closed network connection
2022/11/16 13:42:01 http2: server: error reading preface from client 127.0.0.1:52677: bogus greeting "CONNECT golang.fake.tld:"

— watchflakes

[bcmills]

Marking as release-blocker because this test is new as of https://go.dev/cl/436890 (attn @neild).

[gopherbot]

Change https://go.dev/cl/451715 mentions this issue: net/http: deflake TestResponseControllerSetFutureWriteDeadline

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && test == "TestResponseControllerSetFutureWriteDeadline"

2023-02-01 19:47 linux-amd64-race go@ab0f0459 net/http.TestResponseControllerSetFutureWriteDeadline (log)

--- FAIL: TestResponseControllerSetFutureWriteDeadline (0.00s)

2023-02-01 21:30 darwin-amd64-race go@4b7f7eef net/http.TestResponseControllerSetFutureWriteDeadline (log)

--- FAIL: TestResponseControllerSetFutureWriteDeadline (0.00s)

— watchflakes

[bcmills]

The above are #58168.