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-rw-r--r--compiler/rustc_resolve/src/check_unused.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_resolve/src/check_unused.rs b/compiler/rustc_resolve/src/check_unused.rs
index 5a605df88c2..1c1e8494ffc 100644
--- a/compiler/rustc_resolve/src/check_unused.rs
+++ b/compiler/rustc_resolve/src/check_unused.rs
@@ -397,7 +397,7 @@ impl Resolver<'_, '_> {
                 }
                 ImportKind::ExternCrate { id, .. } => {
                     let def_id = self.local_def_id(id);
-                    if self.extern_crate_map.get(&def_id).map_or(true, |&cnum| {
+                    if self.extern_crate_map.get(&def_id).is_none_or(|&cnum| {
                         !tcx.is_compiler_builtins(cnum)
                             && !tcx.is_panic_runtime(cnum)
                             && !tcx.has_global_allocator(cnum)