Revert "chore(ci): upgrade checkout to v5"

This reverts commit 6af9f3a.

Author: rejected-l

.github/workflows/ci.yml

@@ -52,7 +52,7 @@ jobs:
       run_type: ${{ steps.jobs.outputs.run_type }}
     steps:
       - name: Checkout the source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
       - name: Test citool
         # Only test citool on the auto branch, to reduce latency of the calculate matrix job
         # on PR/try builds.
@@ -113,7 +113,7 @@ jobs:
         run: git config --global core.autocrlf false
 
       - name: checkout the source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
         with:
           fetch-depth: 2
 
@@ -313,7 +313,7 @@ jobs:
     if: ${{ !cancelled() && contains(fromJSON('["auto", "try"]'), needs.calculate_matrix.outputs.run_type) }}
     steps:
       - name: checkout the source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
         with:
           fetch-depth: 2
       # Calculate the exit status of the whole CI workflow.

.github/workflows/dependencies.yml

@@ -51,7 +51,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: checkout the source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
         with:
           submodules: recursive
       - name: install the bootstrap toolchain
@@ -101,7 +101,7 @@ jobs:
       pull-requests: write
     steps:
       - name: checkout the source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - name: download Cargo.lock from update job
         uses: actions/download-artifact@v4

.github/workflows/ghcr.yml

@@ -29,7 +29,7 @@ jobs:
       # Needed to write to the ghcr.io registry
       packages: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
         with:
           persist-credentials: false
 

.github/workflows/post-merge.yml

@@ -15,7 +15,7 @@ jobs:
     permissions:
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
         with:
           # Make sure that we have enough commits to find the parent merge commit.
           # Since all merges should be through merge commits, fetching two commits

compiler/rustc_codegen_cranelift/.github/workflows/abi-cafe.yml

@@ -43,7 +43,7 @@ jobs:
           #    TARGET_TRIPLE: x86_64-pc-windows-gnu
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     - name: CPU features
       if: matrix.os == 'ubuntu-latest'

compiler/rustc_codegen_cranelift/.github/workflows/audit.yml

@@ -10,7 +10,7 @@ jobs:
   audit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - run: |
           sed -i 's/components.*/components = []/' rust-toolchain
       - uses: rustsec/audit-check@v1.4.1

compiler/rustc_codegen_cranelift/.github/workflows/main.yml

@@ -24,7 +24,7 @@ jobs:
     timeout-minutes: 10
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     - name: Avoid installing rustc-dev
       run: |
@@ -78,7 +78,7 @@ jobs:
               TARGET_TRIPLE: x86_64-pc-windows-gnu
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     - name: CPU features
       if: matrix.os == 'ubuntu-latest'
@@ -127,7 +127,7 @@ jobs:
     timeout-minutes: 60
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     - name: CPU features
       run: cat /proc/cpuinfo
@@ -149,7 +149,7 @@ jobs:
     timeout-minutes: 60
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     - name: CPU features
       run: cat /proc/cpuinfo
@@ -201,7 +201,7 @@ jobs:
               TARGET_TRIPLE: x86_64-pc-windows-gnu
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     - name: Cache cargo target dir
       uses: actions/cache@v4
@@ -242,7 +242,7 @@ jobs:
       cancel-in-progress: true
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
 
       - name: Download all built artifacts
         uses: actions/download-artifact@v4

compiler/rustc_codegen_cranelift/.github/workflows/rustc.yml

@@ -11,7 +11,7 @@ jobs:
     timeout-minutes: 60
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     - name: CPU features
       run: cat /proc/cpuinfo
@@ -31,7 +31,7 @@ jobs:
     timeout-minutes: 60
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     - name: CPU features
       run: cat /proc/cpuinfo

compiler/rustc_codegen_gcc/.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
         ]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     # `rustup show` installs from rust-toolchain.toml
     - name: Setup rust toolchain
@@ -120,20 +120,20 @@ jobs:
   duplicates:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - run: python tools/check_intrinsics_duplicates.py
 
   spell_check:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - uses: crate-ci/typos@v1.32.0
       - uses: streetsidesoftware/cspell-action@v7
 
   build_system:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - name: Test build system
         run: |
           cd build_system

compiler/rustc_codegen_gcc/.github/workflows/failures.yml

@@ -34,7 +34,7 @@ jobs:
             env_extra: "TEST_FLAGS='-Cpanic=abort -Zpanic-abort-tests' GCC_EXEC_PREFIX=/usr/lib/gcc/"
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v4
 
     # `rustup show` installs from rust-toolchain.toml
     - name: Setup rust toolchain