Quickstart: should run quickstart failed

[flaky-bot]

This test failed!

To configure my behavior, see the Flaky Bot documentation.

If I'm commenting on this issue too often, add the flakybot: quiet label and
I will stop commenting.

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commit: af58175
buildURL: Build Status, Sponge
status: failed

Test output

Command failed: node ./quickstart.js long-door-651
16 UNAUTHENTICATED: Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.
Error: Command failed: node ./quickstart.js long-door-651

16 UNAUTHENTICATED: Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.
at checkExecSyncError (child_process.js:635:11)
at Object.execSync (child_process.js:671:15)
at execSync (test/quickstart.js:26:28)
at Context.<anonymous> (test/quickstart.js:40:20)
at processImmediate (internal/timers.js:461:21)</pre></details>

[flaky-bot]

Looks like this issue is flaky. 😟

I'm going to leave this open and stop commenting.

A human should fix and close this.

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When run at the same commit (af58175), this test passed in one build (Build Status, Sponge) and failed in another build (Build Status, Sponge).