fix: ensure when there's a dupe function name during a perf profile run that program exits

[astorm]

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[ghost]

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• Start Time: 2022-01-10T05:14:48.901+0000

• Duration: 7 min 43 sec

• Commit: e108152

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Test	Results
Failed	0
Passed	78
Skipped	0
Total	78

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