net/http: TestRetryRequestsOnError failure with "server closed idle connection" on windows-arm64-10

[bcmills]

--- FAIL: TestRetryRequestsOnError (0.01s)
    --- FAIL: TestRetryRequestsOnError/IdempotentGetBodySomeWritten (0.00s)
        transport_test.go:3566: i=1: Do = Get "http://fake.golang": http: server closed idle connection; log:
            Dial
            Write("GET / HTTP/1.1\r\nHost: fake.golang\r\nUser-Agent: Go-http-client/1.1\r\nContent-Length: 4\r\nAccept-Encoding: gzip\r\n\r\nfoo\n")
            Handler
            Dial
            intentional write failure
FAIL
FAIL	net/http	7.676s

greplogs --dashboard -md -l -e 'FAIL: TestRetryRequestsOnError .*(?:\n .*)*server closed idle connection'

2022-04-05T18:58:52-5a6a830/windows-arm64-10

See previously #30938 (CC @neild). I'm going to leave this test as-is for now to collect more data on how often and on what platforms this error occurs.