Auto merge of #141906 - chenyukang:rollup-k6v59ty, r=chenyukang

Rollup of 6 pull requests

Successful merges:

 - rust-lang/rust#141884 (allow macro_use as first segment)
 - rust-lang/rust#141885 ([RTE-484] Update SGX maintainers)
 - rust-lang/rust#141892 (Fix false positive lint error from no_implicit_prelude attr)
 - rust-lang/rust#141894 (rustc-dev-guide subtree update)
 - rust-lang/rust#141895 (tshepang has a new email)
 - rust-lang/rust#141897 (Fix citool tests when executed locally)

r? `@ghost`
`@rustbot` modify labels: rollup

2 files changed, 13 insertions, 1 deletions

diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs
index 0777d442b59..5b7d45bb152 100644
--- a/compiler/rustc_passes/src/check_attr.rs
+++ b/compiler/rustc_passes/src/check_attr.rs
@@ -2312,7 +2312,9 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
     }
 
     fn check_macro_use(&self, hir_id: HirId, attr: &Attribute, target: Target) {
-        let name = attr.name().unwrap();
+        let Some(name) = attr.name() else {
+            return;
+        };
         match target {
             Target::ExternCrate | Target::Mod => {}
             _ => {
diff --git a/compiler/rustc_resolve/src/check_unused.rs b/compiler/rustc_resolve/src/check_unused.rs
index 0579e91c0d6..e0b2adb3fc9 100644
--- a/compiler/rustc_resolve/src/check_unused.rs
+++ b/compiler/rustc_resolve/src/check_unused.rs
@@ -193,6 +193,16 @@ impl<'a, 'ra, 'tcx> UnusedImportCheckVisitor<'a, 'ra, 'tcx> {
                 continue;
             }
 
+            let module = self
+                .r
+                .get_nearest_non_block_module(self.r.local_def_id(extern_crate.id).to_def_id());
+            if module.no_implicit_prelude {
+                // If the module has `no_implicit_prelude`, then we don't suggest
+                // replacing the extern crate with a use, as it would not be
+                // inserted into the prelude. User writes `extern` style deliberately.
+                continue;
+            }
+
             let vis_span = extern_crate
                 .vis_span
                 .find_ancestor_inside(extern_crate.span)