Put following lines as part of Default Content text box

${BUILD_LOG, maxLines=9999, escapeHtml=false}

this works for free style projects

${BUILD_LOG_REGEX, regex=”\\b(Buildfile|BUILD)\\b”, linesAfter=1}

${BUILD_LOG_REGEX, regex=”^.*?BUILD FAILED.*?$”, linesBefore=0, linesAfter=10, maxMatches=5, showTruncatedLines=false, escapeHtml=true}

${BUILD_LOG_REGEX, regex=”\\b(FC0)\\b”, linesAfter=1}

${BUILD_LOG_REGEX, regex=”^.*?BUILD FAILED.*?$”, linesBefore=0, linesAfter=10, maxMatches=5, showTruncatedLines=false, escapeHtml=true}

${BUILD_LOG_REGEX, regex=”^.*?FC0.*?$”, maxMatches=95, showTruncatedLines=false, escapeHtml=false, matchedLineHtmlStyle=true}

This will show exactly which is expected lines as part of the regEx.

${PROJECT_URL}/ws/

${BUILD_URL}/artifact/

${BUILD_LOG, maxLines=1000}

More ref

Content Token Reference

In string arguments, escape “, \, and line terminators (\n or \r\n) with a \, e.g. arg1=”\”quoted\””; arg2=”c:\\path”; and arg3=”one\ntwo”. The brackets may be omitted if there are no arguments.

New Lines – Use <br> or “\”