DOn't cancel the context and use a sane deadline.

src/duplicacy_swiftstorage.go

@@ -108,9 +108,7 @@ func CreateSwiftStorage(storageURL string, key string, threads int) (storage *Sw
 		arguments["protocol"] = "https"
 	}
 
-	// This context ends up expired, which is fine.
-	ctx, cancel := context.WithDeadline(context.Background(), time.Now())
-	defer cancel()
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(timeout)*time.Second)
 
 	// Please refer to https://godoc.org/github.com/ncw/swift#Connection
 	connection := swift.Connection{