Auto merge of #118065 - estebank:core-not-found-404, r=TaKO8Ki

When failing to import `core`, suggest `std`
2023-11-23 02:26:52 +00:00 · 2023-11-23 02:26:52 +00:00 · 360bafad68
commit 360bafad68
parent c387f012b1 ec50f1c90b
4 changed files with 29 additions and 12 deletions
--- a/compiler/rustc_resolve/src/diagnostics.rs
+++ b/compiler/rustc_resolve/src/diagnostics.rs
@ -1858,6 +1858,15 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
                        Applicability::MaybeIncorrect,
                    )),
                )
+            } else if ident.name == sym::core {
+                (
+                    format!("maybe a missing crate `{ident}`?"),
+                    Some((
+                        vec![(ident.span, "std".to_string())],
+                        "try using `std` instead of `core`".to_string(),
+                        Applicability::MaybeIncorrect,
+                    )),
+                )
            } else if self.tcx.sess.is_rust_2015() {
                (
                    format!("maybe a missing crate `{ident}`?"),