Make opts.maybe_sysroot non-optional

build_session_options always uses materialize_sysroot anyway.

1 files changed, 4 insertions, 2 deletions

diff --git a/compiler/rustc_error_messages/src/lib.rs b/compiler/rustc_error_messages/src/lib.rs
index 6d02d6370fc..56adc583ac4 100644
--- a/compiler/rustc_error_messages/src/lib.rs
+++ b/compiler/rustc_error_messages/src/lib.rs
@@ -107,7 +107,7 @@ impl From<Vec<FluentError>> for TranslationBundleError {
 /// (overriding any conflicting messages).
 #[instrument(level = "trace")]
 pub fn fluent_bundle(
-    mut user_provided_sysroot: Option<PathBuf>,
+    mut user_provided_sysroot: PathBuf,
     mut sysroot_candidates: Vec<PathBuf>,
     requested_locale: Option<LanguageIdentifier>,
     additional_ftl_path: Option<&Path>,
@@ -142,7 +142,9 @@ pub fn fluent_bundle(
     // If the user requests the default locale then don't try to load anything.
     if let Some(requested_locale) = requested_locale {
         let mut found_resources = false;
-        for sysroot in user_provided_sysroot.iter_mut().chain(sysroot_candidates.iter_mut()) {
+        for sysroot in
+            Some(&mut user_provided_sysroot).into_iter().chain(sysroot_candidates.iter_mut())
+        {
             sysroot.push("share");
             sysroot.push("locale");
             sysroot.push(requested_locale.to_string());