Investigate flaky parallel/test-trace-events-metadata #24129

00:09:00 not ok 1930 parallel/test-trace-events-metadata
00:09:00   ---
00:09:00   duration_ms: 0.412
00:09:00   severity: fail
00:09:00   exitcode: 1
00:09:00   stack: |-
00:09:00     assert.js:351
00:09:00         throw err;
00:09:00         ^
00:09:00     
00:09:00     AssertionError [ERR_ASSERTION]: The expression evaluated to a falsy value:
00:09:00     
00:09:00       assert(traces.some((trace) =>
00:09:00         trace.name === 'process_name' && trace.args.name === 'foo'))
00:09:00     
00:09:00         at fs.readFile.common.mustCall (/home/iojs/build/workspace/node-test-commit-linux/nodes/ubuntu1604-64/test/parallel/test-trace-events-metadata.js:67:7)
00:09:00         at /home/iojs/build/workspace/node-test-commit-linux/nodes/ubuntu1604-64/test/common/index.js:340:15
00:09:00         at FSReqCallback.readFileAfterClose [as oncomplete] (internal/fs/read_file_context.js:53:3)
00:09:00   ...