Merge ref '21a19c297d4f' from rust-lang/rust

Pull recent changes from https://github.com/rust-lang/rust via Josh.

Upstream ref: 21a19c2
Filtered ref: 9a5c1fb93028e1a29a7598ce782efb0c5d7be534

This merge was created using https://github.com/rust-lang/josh-sync.

Author: The rustc-josh-sync Cronjob Bot

.github/ISSUE_TEMPLATE/documentation.yaml

@@ -1,5 +1,5 @@
 name: Documentation problem
-description: Create a report for a documentation problem.
+description: Report an issue with documentation content.
 labels: ["A-docs"]
 body:
   - type: markdown
@@ -19,20 +19,20 @@ body:
         - [The Rustonomicon](https://github.com/rust-lang/nomicon/issues)
         - [The Embedded Book](https://github.com/rust-embedded/book/issues)
 
-        All other documentation issues should be filed here.
+        Or, if you find an issue related to rustdoc (e.g. doctest, rustdoc UI), please use the rustdoc issue template instead.
 
-        Or, if you find an issue related to rustdoc (e.g. doctest, rustdoc UI), please use the bug report or blank issue template instead.
+        All other documentation issues should be filed here.
 
   - type: textarea
     id: location
     attributes:
-      label: Location
+      label: Location (URL)
     validations:
-      required: true 
+      required: true
 
   - type: textarea
     id: summary
     attributes:
       label: Summary
     validations:
-      required: true 
+      required: true

.github/workflows/ci.yml

@@ -117,14 +117,21 @@ jobs:
         with:
           fetch-depth: 2
 
-      # Free up disk space on Linux by removing preinstalled components that
+      # Free up disk space on Linux and Windows by removing preinstalled components that
       # we do not need. We do this to enable some of the less resource
       # intensive jobs to run on free runners, which however also have
       # less disk space.
       - name: free up disk space
         run: src/ci/scripts/free-disk-space.sh
         if: matrix.free_disk
 
+      # If we don't need to free up disk space then just report how much space we have
+      - name: print disk usage
+        run: |
+          echo "disk usage:"
+          df -h
+        if: matrix.free_disk == false
+
       # Rust Log Analyzer can't currently detect the PR number of a GitHub
       # Actions build on its own, so a hint in the log message is needed to
       # point it in the right direction.
@@ -152,9 +159,6 @@ jobs:
       - name: show the current environment
         run: src/ci/scripts/dump-environment.sh
 
-      - name: install rust
-        run: src/ci/scripts/install-rust.sh
-
       - name: install awscli
         run: src/ci/scripts/install-awscli.sh
 

.gitmodules

@@ -25,7 +25,7 @@
 [submodule "src/llvm-project"]
 	path = src/llvm-project
 	url = https://github.com/rust-lang/llvm-project.git
-	branch = rustc/20.1-2025-07-13
+	branch = rustc/21.1-2025-08-01
 	shallow = true
 [submodule "src/doc/embedded-book"]
 	path = src/doc/embedded-book

.mailmap

@@ -597,6 +597,7 @@ Sam Radhakrishnan <[email protected]>
 Samuel Tardieu <[email protected]>
 Santiago Pastorino <[email protected]>
 Santiago Pastorino <[email protected]> <[email protected]>
+Sasha Pourcelot <[email protected]> Sasha <[email protected]>
 Scott McMurray <[email protected]>
 Scott McMurray <[email protected]> <[email protected]>
 Scott Olson <[email protected]> Scott Olson <[email protected]>