Error report:

one of our static analysis tools found a bug in PR #7083

The error message is

do not call encoding/json.Marshal on composite types containing protobuf message types

The explanation is go/goprotoapi-findings#message-goreflect-json

The line in question is

google-cloud-go/logging/logging.go

Line 980 in 69eedab

data, err := json.Marshal(Alias(s))

It might be a false positive but you should probably take a look.

It appears that we need to write custom MarshalJSON functions for the proto types that make up structuredLogEntry