async has not impact on Lambda behaviour.
Result: Failed
dotnet store command: dotnet store -m LambdaAsyncTest.layer -o ./store/ --framework-version 2.1.11 -r win10-x64 --skip-optimization -v d
dotnet publish: dotnet publish --manifest C:\Mukul\Git\LambdaAsyncTest\LambdaAsyncTest\store\x64\netcoreapp2.1\artifact.xml -c Release -f netcoreapp2.1 -v d -r win10-x64 -o ./deploy/
dotnet public without manifest dotnet publish -c Release -f netcoreapp2.1 -r win10-x64 -o ./deploy1/