Rollup merge of #138678 - durin42:rmeta-stability, r=fmease

rustc_resolve: fix instability in lib.rmeta contents

rust-lang/rust@23032f31c91f2 accidentally introduced some nondeterminism in the ordering of lib.rmeta files, which we caught in our bazel-based builds only recently due to being further behind than normal. In my testing, this fixes the issue.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs
index 0d547a6a0d9..334a7a86989 100644
--- a/src/librustdoc/html/markdown.rs
+++ b/src/librustdoc/html/markdown.rs
@@ -1724,6 +1724,7 @@ pub(crate) fn markdown_links<'md, R>(
     md: &'md str,
     preprocess_link: impl Fn(MarkdownLink) -> Option<R>,
 ) -> Vec<R> {
+    use itertools::Itertools;
     if md.is_empty() {
         return vec![];
     }
@@ -1882,7 +1883,7 @@ pub(crate) fn markdown_links<'md, R>(
     let mut links = Vec::new();
 
     let mut refdefs = FxIndexMap::default();
-    for (label, refdef) in event_iter.reference_definitions().iter() {
+    for (label, refdef) in event_iter.reference_definitions().iter().sorted_by_key(|x| x.0) {
         refdefs.insert(label.to_string(), (false, refdef.dest.to_string(), refdef.span.clone()));
     }