drop line if can't parse

pkg/lines/lines_single.go

@@ -22,9 +22,10 @@ func (unparsed RawC) parse(parsed chan<- singleLine) {
 		if err := line.parse(); err != nil {
 			promRecordPrefixParsingErr.WithLabelValues(raw.MetricsName).Add(1)
 			log.Printf("parsing kubernetes log line in %q: %e", raw.File.Path, err)
+
+			continue
 		}
 
-		// TODO: should this only be on success?
 		parsed <- line
 	}
 }