Fixes #35463

Change-Id: I29af27b77cc651395c20570943847729ff12586c
Reviewed-on: https://go-review.googlesource.com/c/go/+/206297
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>