[fix] delete previous container

server.js

@@ -248,6 +248,8 @@ var docker_build = (socket, sessionID) => {
                             clearInterval(intervalObj)
                             clearTimeout(timeoutObj)
                             socket.emit('info', 'Container exited')
+                            // Delete container
+                            container.delete({ force: true })
                             // Get submission results
                             update_submission(socket, sessionID)
                         }
@@ -264,8 +266,26 @@ var docker_build = (socket, sessionID) => {
         console.log('end')
         if(!finished)
         {
+            docker.container.list({all:true})
+            .then((containers) => {
+                containers.forEach(container => {
+                    if(container.data.Id == container_id) {
+                        socket.emit('info', 'Timeout, cleaning ' + container.data.State + ' container')
+
+                        // Delete container
+                        container.delete({ force: true })
+
+                        // Finished Running
+                        finished = true
                         clearInterval(intervalObj)
-            socket.emit('info', 'timeout')
+                        clearTimeout(timeoutObj)
+                        clearInterval(intervalObj)
+
+                        socket.emit('info', 'Container removed')
+                    }
+                })
+            })
+            .catch(error => console.log(error))
         }
     }, 900000)
 }