There is an active builder that was added in CL 201597,
and it is passing on Go tip and release-branch.go1.13
(with one failure that appears to be flaky due to being
out of memory). It's also passing on all golang.org/x repos
on tip and release-branch.go1.13. It's not configured to
run on Go 1.12 release branches.
Updates #36878
Updates #15581
Change-Id: I4ed7fc62c11a09743832fca39bd61fa0cf6e7ded
Reviewed-on: https://go-review.googlesource.com/c/go/+/217737 Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Alexander Rakoczy <alex@golang.org>