Fix build of the `build-manifest` tool

Accidentally broken in #56258!

diff --git a/src/tools/build-manifest/src/main.rs b/src/tools/build-manifest/src/main.rs
index d9834f9f0a0045588d45fdb46780175288edfd47..896b380f85c95def492d555010a88b01c4c71e60 100644 (file)
--- a/src/tools/build-manifest/src/main.rs
+++ b/src/tools/build-manifest/src/main.rs
@@ -14,7 +14,7 @@
 
 use std::collections::BTreeMap;
 use std::env;
-use std::fs::File;
+use std::fs;
 use std::io::{self, Read, Write};
 use std::path::{PathBuf, Path};
 use std::process::{Command, Stdio};