fixup! try to allocate arrays before borrow

Author: william-stacken

ext/src/ruby_api/wasi_config.rs

@@ -255,16 +255,19 @@ impl WasiConfig {
         dir_perms: Symbol,
         file_perms: Symbol,
     ) -> RbSelf {
-        let mut inner = rb_self.inner.borrow_mut();
-        if inner.mapped_directories.is_none() {
-            inner.mapped_directories = Some(RArray::new().into());
-        }
         let mapped_directory = RArray::new();
         mapped_directory.push(host_path).unwrap();
         mapped_directory.push(guest_path).unwrap();
         mapped_directory.push(dir_perms).unwrap();
         mapped_directory.push(file_perms).unwrap();
 
+        let init_directory = RArray::new();
+
+        let mut inner = rb_self.inner.borrow_mut();
+        if inner.mapped_directories.is_none() {
+            inner.mapped_directories = Some(init_directory.into());
+        }
+
         let ruby = Ruby::get().unwrap();
         let mapped_directories = ruby.get_inner(inner.mapped_directories.unwrap());
         mapped_directories.push(mapped_directory).unwrap();