ldflags:   "-linkmode=internal",
					pkg:       "os/user",
				})
		}
	}

	// sync tests
	if t.hasParallelism() {
		t.registerTest("sync -cpu=10",
			&goTest{
				variant: "cpu10",
				timeout: 120 * time.Second,
				cpu:     "10",
				pkg:     "sync",
			})
	}

	const cgoHeading = "Testing cgo"
	if t.cgoEnabled {
		t.registerCgoTests(cgoHeading)
	}