Main function exits almost instantly

[darkphoenix]

After creating an access key, saving it in JSON format and setting GOOGLE_APPLICATION_CREDENTIALS, it exits after a second or so without any error message. Notably, if I don't set that environment variable, it exits after about 60 seconds with an error about not being able to determine credentials - when I do set them, it errors instantly, and doesn't wait for 60 seconds. Any idea what might be the issue?