Investigate flaky parallel/test-trace-events-api-worker-disabled #24305
Description
https://ci.nodejs.org/job/node-test-commit-aix/18754/nodes=aix61-ppc64/console
00:45:35 not ok 1904 parallel/test-trace-events-api-worker-disabled
00:45:35 ---
00:45:35 duration_ms: 2.580
00:45:35 severity: fail
00:45:35 exitcode: 1
00:45:35 stack: |-
00:45:35 Mismatched innerFn function calls. Expected exactly 1, actual 0.
00:45:35 at mustCall (/home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/test/common/index.js:312:10)
00:45:35 at Object.expectsError (/home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/test/common/index.js:606:10)
00:45:35 at Object.<anonymous> (/home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/test/parallel/test-trace-events-api-worker-disabled.js:8:23)
00:45:35 at Module._compile (internal/modules/cjs/loader.js:722:30)
00:45:35 at Object.Module._extensions..js (internal/modules/cjs/loader.js:733:10)
00:45:35 at Module.load (internal/modules/cjs/loader.js:620:32)
00:45:35 at tryModuleLoad (internal/modules/cjs/loader.js:560:12)
00:45:35 at Function.Module._load (internal/modules/cjs/loader.js:552:3)
00:45:35 at Function.Module.runMain (internal/modules/cjs/loader.js:775:12)
00:45:35 ...