cmd/go/internal/modfetch: TestCodeRepoVersions failures

[gopherbot]

#!watchflakes
post <- pkg == "cmd/go/internal/modfetch" && test == "TestCodeRepoVersions"

Bug automatically created to track these flakes.

— watchflakes

[gopherbot]

Found new matching flaky dashboard failures for:

#!watchflakes
post <- pkg == "cmd/go/internal/modfetch" && test == "TestCodeRepoVersions"

2022-08-08 14:12 windows-amd64-longtest go@dcd10375 cmd/go/internal/modfetch.TestCodeRepoVersions (log)

--- FAIL: TestCodeRepoVersions (0.00s)
    --- FAIL: TestCodeRepoVersions/parallel (0.00s)
        --- FAIL: TestCodeRepoVersions/parallel/swtch.com_testmod (0.00s)
            coderepo_test.go:824: Versions(""): unrecognized import path "swtch.com/testmod": https fetch: Get "https://swtch.com/testmod?go-get=1": read tcp 10.128.3.108:55424->216.239.36.21:443: wsarecv: An existing connection was forcibly closed by the remote host.

— watchflakes