Log real errors and not just their messages, traces are useful (matrix-org#2464)

Author: t3chguy

src/crypto/index.ts

@@ -3284,7 +3284,7 @@ export class Crypto extends TypedEventEmitter<CryptoEvent, CryptoEventHandlerMap
                     event.on(MatrixEventEvent.Status, statusListener);
                 });
             } catch (err) {
-                logger.error("error while waiting for the verification event to be sent: " + err.message);
+                logger.error("error while waiting for the verification event to be sent: ", err);
                 return;
             } finally {
                 event.removeListener(MatrixEventEvent.LocalEventIdReplaced, eventIdListener);
@@ -3308,7 +3308,7 @@ export class Crypto extends TypedEventEmitter<CryptoEvent, CryptoEventHandlerMap
         try {
             await request.channel.handleEvent(event, request, isLiveEvent);
         } catch (err) {
-            logger.error("error while handling verification event: " + err.message);
+            logger.error("error while handling verification event", err);
         }
         const shouldEmit = isNewRequest &&
             !request.initiatedByMe &&

src/store/indexeddb-store-worker.ts

@@ -122,8 +122,7 @@ export class IndexedDBStoreWorker {
                 result: ret,
             });
         }, (err) => {
-            logger.error("Error running command: " + msg.command);
-            logger.error(err);
+            logger.error("Error running command: " + msg.command, err);
             this.postMessage.call(null, {
                 command: 'cmd_fail',
                 seq: msg.seq,