As requested in JENKINS-48669, I'm filing a sample DocFX log so you can make Violations Lib support it. The format is a series of JSON objects with newlines in between.

The log file is written by C# code shown here: https://github.com/dotnet/docfx/blob/v2.28.2/src/Microsoft.DocAsCode.Common/Loggers/ReportLogListener.cs

Notes on the properties of the JSON objects:

• "message": The most important text.
• "source": What the program was doing when it generated the log entry.
• "file": The value in is bizarrely HTML-encoded. This property is not always present.
• "line": This property is not always present.
• "date_time": Always UTC.
• "message_severity": Lower case.
• "code": Seems to be an error code for grouping. This property is not always present.
• "correlation_id": Consists of a GUID (random by default) and a hierarchical identifier. Does not seem useful to include in violation comments.