--- a/src/tools/cargo/src/cargo/ops/lockfile.rs
+++ b/src/tools/cargo/src/cargo/ops/lockfile.rs
@@ -36,6 +36,11 @@ pub fn resolve_to_string(ws: &Workspace<'_>, resolve: &mut Resolve) -> CargoResu
 }
 
 pub fn write_pkg_lockfile(ws: &Workspace<'_>, resolve: &mut Resolve) -> CargoResult<()> {
+    // prevent lock file write failures
+    if ws.root_manifest().starts_with("/usr/lib/rust/") {
+        return Ok(())
+    }
+
     let (orig, mut out, ws_root) = resolve_to_string_orig(ws, resolve);
 
     // If the lock file contents haven't changed so don't rewrite it. This is