note -> help

src/librustc/traits/error_reporting.rs

@@ -995,7 +995,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
     fn suggest_new_overflow_limit(&self, err: &mut DiagnosticBuilder) {
         let current_limit = self.tcx.sess.recursion_limit.get();
         let suggested_limit = current_limit * 2;
-        err.note(&format!(
+        err.help(&format!(
                           "consider adding a `#![recursion_limit=\"{}\"]` attribute to your crate",
                           suggested_limit));
     }

src/libsyntax/ext/base.rs

@@ -678,7 +678,7 @@ impl<'a> ExtCtxt<'a> {
             let mut err = self.struct_span_fatal(ei.call_site,
                 &format!("recursion limit reached while expanding the macro `{}`",
                          ei.callee.name()));
-            err.note(&format!(
+            err.help(&format!(
                 "consider adding a `#![recursion_limit=\"{}\"]` attribute to your crate",
                 suggested_limit));
             err.emit();

src/test/ui/did_you_mean/recursion_limit.stderr

@@ -4,7 +4,7 @@ error[E0275]: overflow evaluating the requirement `K: std::marker::Send`
 44 |     is_send::<A>();
    |     ^^^^^^^^^^^^
    |
-   = note: consider adding a `#![recursion_limit="20"]` attribute to your crate
+   = help: consider adding a `#![recursion_limit="20"]` attribute to your crate
    = note: required because it appears within the type `J`
    = note: required because it appears within the type `I`
    = note: required because it appears within the type `H`

src/test/ui/did_you_mean/recursion_limit_macro.stderr

@@ -7,5 +7,5 @@ error: recursion limit reached while expanding the macro `recurse`
 24 |     recurse!(0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9);
    |     -------------------------------------------------- in this macro invocation
    |
-   = note: consider adding a `#![recursion_limit="20"]` attribute to your crate
+   = help: consider adding a `#![recursion_limit="20"]` attribute to your crate