in regex-parser/src/jetbrains.buildServer.cmakerunner/regexparser/RegexPattern.java [103:111]
public boolean processLine(@NotNull final String line, @NotNull final ParserManager parserManager) {
final Matcher matcher = getMatcher(line);
// pattern should cover the whole line
if (!(matcher.find() && matcher.group(0).length() == line.length()))
return false;
applyToManager(line, matcher, parserManager);
return myEatLine;
}