Clippy lint clean

Summary:
Fixes all Rust 1.81.0 (current) and Rust 1.83.0 (upcoming in D67041293)
rustc/clippy lint issues in rust_foundation (and related) code.

Reviewed By: dtolnay

Differential Revision: D67262078

fbshipit-source-id: bd8807f76b3f3d68d610b69a0448983b4bf1fe41

src/fixups/config.rs

@@ -102,7 +102,7 @@ impl FixupConfigFile {
     pub fn platform_configs<'a>(
         &'a self,
         version: &'a semver::Version,
-    ) -> impl Iterator<Item = (&PlatformExpr, &FixupConfig)> + 'a {
+    ) -> impl Iterator<Item = (&'a PlatformExpr, &'a FixupConfig)> + 'a {
         self.platform_fixup
             .iter()
             .filter(move |(_, cfg)| cfg.version_applies(version))
@@ -111,7 +111,7 @@ impl FixupConfigFile {
     pub fn configs<'a>(
         &'a self,
         version: &'a semver::Version,
-    ) -> impl Iterator<Item = (Option<&PlatformExpr>, &FixupConfig)> + 'a {
+    ) -> impl Iterator<Item = (Option<&'a PlatformExpr>, &'a FixupConfig)> + 'a {
         self.base(version)
             .into_iter()
             .map(|base| (None, base))