Capture stdout / stderr in --output

Is there any way i can easily capture stdout / stderr via the command line flags

Currently --output only dumps scripts that executed. Ideally id like to have the ability to send the actual run logs to a destination of my choice.

For context ...my use case is ..

Im using grate inside azure container apps ( jobs ) without log insights and there is no way to capture the console logs and save them unless we turn on log insights. I can modify the docker file to allow this but if there a simpler way to do it that would be better