run/logging-manual: uses "trace" property as entry trace failed

[flaky-bot]

Note: #2377 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky.

---

commit: 550cabf
buildURL: Build Status, Sponge
status: failed

Test output

Cannot read property 'metadata' of undefined
TypeError: Cannot read property 'metadata' of undefined
    at Context. (test/system.test.js:195:24)
    at processImmediate (internal/timers.js:461:21)

[flaky-bot]

Test passed for commit 65be1e2 (Build Status, Sponge)! Closing this issue.