Attach client and source version to exceptions.

common/src/main/java/dev/lavalink/youtube/ClientInformation.java

@@ -0,0 +1,18 @@
+package dev.lavalink.youtube;
+
+import com.sedmelluq.discord.lavaplayer.tools.exception.DetailMessageBuilder;
+import dev.lavalink.youtube.clients.skeleton.Client;
+
+public class ClientInformation extends Exception {
+    private ClientInformation(String message) {
+        super(message, null, false, false);
+    }
+
+    public static ClientInformation create(Client client) {
+        DetailMessageBuilder builder = new DetailMessageBuilder();
+        builder.appendField("yts.version", YoutubeSource.VERSION);
+        builder.appendField("client.identifier", client.getIdentifier());
+        builder.appendField("client.options", client.getOptions());
+        return new ClientInformation(builder.toString());
+    }
+}

common/src/main/java/dev/lavalink/youtube/YoutubeAudioSourceManager.java

@@ -198,6 +198,7 @@ protected AudioItem loadItemOnce(@NotNull AudioReference reference) {
                     throw ExceptionTools.wrapUnfriendlyExceptions("This video cannot be loaded.", Severity.SUSPICIOUS, cbl.getCause());
                 } catch (Throwable t) {
                     log.debug("Client \"{}\" threw a non-fatal exception, storing and proceeding...", client.getIdentifier(), t);
+                    t.addSuppressed(ClientInformation.create(client));
                     lastException = t;
                 }
             }

common/src/main/java/dev/lavalink/youtube/track/YoutubeAudioTrack.java

@@ -12,6 +12,7 @@
 import com.sedmelluq.discord.lavaplayer.track.DelegatedAudioTrack;
 import com.sedmelluq.discord.lavaplayer.track.playback.LocalAudioTrackExecutor;
 import dev.lavalink.youtube.CannotBeLoaded;
+import dev.lavalink.youtube.ClientInformation;
 import dev.lavalink.youtube.UrlTools;
 import dev.lavalink.youtube.UrlTools.UrlInfo;
 import dev.lavalink.youtube.YoutubeAudioSourceManager;
@@ -70,14 +71,18 @@ public void process(LocalAudioTrackExecutor localExecutor) throws Exception {
         try {
           processWithClient(localExecutor, httpInterface, client, 0);
           return; // stream played through successfully, short-circuit.
-        } catch (FriendlyException e) {
-          // usually thrown by getPlayabilityStatus when loading formats.
-          // these aren't considered fatal, so we just store them and continue.
-          lastException = e;
         } catch (RuntimeException e) {
           // store exception so it can be thrown if we run out of clients to
           // load formats with.
+          e.addSuppressed(ClientInformation.create(client));
           lastException = e;
+
+          if (e instanceof FriendlyException) {
+            // usually thrown by getPlayabilityStatus when loading formats.
+            // these aren't considered fatal, so we just store them and continue.
+            continue;
+          }
+
           String message = e.getMessage();
 
           if ("Not success status code: 403".equals(message) ||