The server properties Actions.Messages.ErrorPatterns and Actions.Messages.WarningPatterns contain a list of patterns which are matched against each line of the standard output from each action which runs as a command line.
One pattern is specified per line in the following format:
Type: "{PatternType}"; Value: "{Pattern|Text}"; IgnoreCase: "{True|False}"; Actions: "{*|ActionTypeName|-ActionTypeName};{ActionTypeName|-ActionTypeName}";
The for the Type parameter can be one of:
Prefix the which a dash - to exclude matching lines. Exclusion always override regular matches.
The Actions parameter can be "*" to apply the pattern matching to the output for all actions, or a list of action type names to apply the pattern match to specific action types. e.g. "MSBuild;FinalBuilder" to apply to the MSBuild and FiinalBuilder actions.
You can also exclude actions by prefixing the action type name with a dash - . e.g. "*;-FinalBuilder" to apply to all actions except for FinalBuilder actions.