Fix compiling failure while target folder is not exist

judge-core/src/compiler.rs

@@ -2,7 +2,7 @@ use crate::error::JudgeCoreError;
 use crate::utils::get_pathbuf_str;
 use anyhow::anyhow;
 use serde_derive::{Serialize, Deserialize};
-use std::fmt;
+use std::{fmt, fs};
 use std::path::PathBuf;
 use std::{process::Command, str::FromStr};
 
@@ -151,6 +151,10 @@ impl Compiler {
             target_path_string
         );
 
+        if let Some(target_parent) = target_path.parent() {
+            fs::create_dir_all(target_parent)?;
+        }
+
         if PathBuf::from(target_path).exists() {
             std::fs::remove_file(target_path)?;
         }