S3 archving

[wpt2018]

Hello,

Would you please confirm below settings are the only required ones for S3 archiving? For some reason, we don't see the test results in the S3 bucket even though the AWS key have the proper permissions and confirmed that by running aws s3 cp command and setting the keys on the WPT server.

archive_s3_server=s3.amazonaws.com
archive_s3_key=my-key
archive_s3_secret=my-secret
archive_s3_bucket=my-archive-bucket
archive_days=0

Also, where can I find the error logs on WPT server?