diff --git a/compiler/rustc_metadata/src/locator.rs b/compiler/rustc_metadata/src/locator.rs index b6922e0d72a..80963c9658e 100644 --- a/compiler/rustc_metadata/src/locator.rs +++ b/compiler/rustc_metadata/src/locator.rs @@ -1030,7 +1030,8 @@ impl CrateError { add, ); err.help(&format!( - "please recompile that crate using this compiler ({})", + "please recompile that crate using this compiler ({}) \ + (consider running `cargo clean` first)", rustc_version(), )); let mismatches = locator.crate_rejections.via_version.iter();