Auto merge of #134056 - jieyouxu:exp-windows-dev-drive-ci, r=<try>

[EXPERIMENTAL] Try to use NTFS dev-drive for Windows CI

What if this makes spurious failures less likely? Grasping at straws here.

The dev-drive setup was adapted from #131880, courtesy of `@GnomedDev's` PR.

r? `@ghost`

// try-job: dist-x86_64-msvc (msi/wxs installer fails to build)
// try-job: x86_64-msvc-ext1 (fails due to insufficient disk space)
try-job: i686-mingw
try-job: i686-msvc
try-job: x86_64-msvc

Author: bors

.github/workflows/ci.yml

@@ -112,6 +112,32 @@ jobs:
         uses: jlumbroso/free-disk-space@54081f138730dfa15788a46383842cd2f914a1be
         if: matrix.free_disk
 
+      # Use dev drive on Windows CI in the hopes that this makes spurious
+      # files-held-by-another-process failures less likely.
+      # cf. <https://github.com/samypr100/setup-dev-drive>
+      - if: contains(matrix.os, 'windows')
+        uses: samypr100/setup-dev-drive@1d65529cfd809844a9e91e400a560294b6820a68
+        with:
+          # Use as much space as is sensible, upper github limits are 14gb and
+          # 300gb.
+          drive-size: ${{ matrix.os == 'windows-2022' && '12gb' || '100gb' }}
+          # Pre-allocate the space to avoid out of disk errors and improve
+          # long-running performance.
+          drive-type: Fixed
+          # Copy the git clone into the dev drive.
+          workspace-copy: true
+          # NOTE: rustc build was failing on stage2 mysteriously when #131880
+          # tried to use ReFS. Trying NTFS here instead.
+          drive-format: NTFS
+
+      - if: contains(matrix.os, 'windows')
+        name: Delete non-dev drive checkout, to make sure we aren't using it still
+        run: rm -rf ${{ github.workspace }}
+
+      - if: ${{ !contains(matrix.os, 'windows') }}
+        name: Make sure DEV_DRIVE_WORKSPACE is populated with the workspace
+        run: echo "DEV_DRIVE_WORKSPACE=${{ github.workspace }}" >> $GITHUB_ENV
+
       # 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.
@@ -123,6 +149,7 @@ jobs:
 
       - name: add extra environment variables
         run: src/ci/scripts/setup-environment.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
         env:
           # Since it's not possible to merge `${{ matrix.env }}` with the other
           # variables in `job.<name>.env`, the variables defined in the matrix
@@ -132,48 +159,63 @@ jobs:
 
       - name: setup upstream remote
         run: src/ci/scripts/setup-upstream-remote.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: ensure the channel matches the target branch
         run: src/ci/scripts/verify-channel.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: collect CPU statistics
         run: src/ci/scripts/collect-cpu-stats.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: show the current environment
         run: src/ci/scripts/dump-environment.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: install awscli
         run: src/ci/scripts/install-awscli.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: install sccache
         run: src/ci/scripts/install-sccache.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: select Xcode
         run: src/ci/scripts/select-xcode.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: install clang
         run: src/ci/scripts/install-clang.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: install tidy
         run: src/ci/scripts/install-tidy.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: install WIX
         run: src/ci/scripts/install-wix.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: disable git crlf conversion
         run: src/ci/scripts/disable-git-crlf-conversion.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: checkout submodules
         run: src/ci/scripts/checkout-submodules.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: install MinGW
         run: src/ci/scripts/install-mingw.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: install ninja
         run: src/ci/scripts/install-ninja.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: enable ipv6 on Docker
         run: src/ci/scripts/enable-docker-ipv6.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       # Disable automatic line ending conversion (again). On Windows, when we're
       # installing dependencies, something switches the git configuration directory or
@@ -182,25 +224,31 @@ jobs:
       # appropriate line endings.
       - name: disable git crlf conversion
         run: src/ci/scripts/disable-git-crlf-conversion.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: ensure line endings are correct
         run: src/ci/scripts/verify-line-endings.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: ensure backported commits are in upstream branches
         run: src/ci/scripts/verify-backported-commits.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: ensure the stable version number is correct
         run: src/ci/scripts/verify-stable-version-number.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: run the build
         # Redirect stderr to stdout to avoid reordering the two streams in the GHA logs.
         run: src/ci/scripts/run-build-from-ci.sh 2>&1
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
         env:
           AWS_ACCESS_KEY_ID: ${{ env.CACHES_AWS_ACCESS_KEY_ID }}
           AWS_SECRET_ACCESS_KEY: ${{ secrets[format('AWS_SECRET_ACCESS_KEY_{0}', env.CACHES_AWS_ACCESS_KEY_ID)] }}
 
       - name: create github artifacts
         run: src/ci/scripts/create-doc-artifacts.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
 
       - name: print disk usage
         run: |
@@ -212,12 +260,13 @@ jobs:
         with:
           # name is set in previous step
           name: ${{ env.DOC_ARTIFACT_NAME }}
-          path: obj/artifacts/doc
+          path: ${{ env.DEV_DRIVE_WORKSPACE }}obj/artifacts/doc
           if-no-files-found: ignore
           retention-days: 5
 
       - name: upload artifacts to S3
         run: src/ci/scripts/upload-artifacts.sh
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
         env:
           AWS_ACCESS_KEY_ID: ${{ env.ARTIFACTS_AWS_ACCESS_KEY_ID }}
           AWS_SECRET_ACCESS_KEY: ${{ secrets[format('AWS_SECRET_ACCESS_KEY_{0}', env.ARTIFACTS_AWS_ACCESS_KEY_ID)] }}
@@ -230,6 +279,7 @@ jobs:
 
       - name: upload job metrics to DataDog
         if: needs.calculate_matrix.outputs.run_type != 'pr'
+        working-directory: ${{ env.DEV_DRIVE_WORKSPACE }}
         env:
           DATADOG_SITE: datadoghq.com
           DATADOG_API_KEY: ${{ secrets.DATADOG_API_KEY }}

tests/ui/traits/fn-pointer/bare-fn-no-impl-fn-ptr-99875.rs

@@ -1,3 +1,6 @@
+//@ ignore-windows
+// FIXME: compiletest path normalization bug
+
 struct Argument;
 struct Return;
 

tests/ui/traits/fn-pointer/bare-fn-no-impl-fn-ptr-99875.stderr

@@ -1,13 +1,13 @@
 error[E0277]: the trait bound `fn(Argument) -> Return {function}: Trait` is not satisfied
-  --> $DIR/bare-fn-no-impl-fn-ptr-99875.rs:12:11
+  --> $DIR/bare-fn-no-impl-fn-ptr-99875.rs:15:11
    |
 LL |     takes(function);
    |     ----- ^^^^^^^^ the trait `Trait` is not implemented for fn item `fn(Argument) -> Return {function}`
    |     |
    |     required by a bound introduced by this call
    |
 note: required by a bound in `takes`
-  --> $DIR/bare-fn-no-impl-fn-ptr-99875.rs:9:18
+  --> $DIR/bare-fn-no-impl-fn-ptr-99875.rs:12:18
    |
 LL | fn takes(_: impl Trait) {}
    |                  ^^^^^ required by this bound in `takes`
@@ -16,18 +16,18 @@ help: the trait `Trait` is implemented for fn pointer `fn(Argument) -> Return`,
 LL |     takes(function as fn(Argument) -> Return);
    |                    +++++++++++++++++++++++++
 
-error[E0277]: the trait bound `{closure@$DIR/bare-fn-no-impl-fn-ptr-99875.rs:14:11: 14:34}: Trait` is not satisfied
-  --> $DIR/bare-fn-no-impl-fn-ptr-99875.rs:14:11
+error[E0277]: the trait bound `{closure@$DIR/bare-fn-no-impl-fn-ptr-99875.rs:17:11: 17:34}: Trait` is not satisfied
+  --> $DIR/bare-fn-no-impl-fn-ptr-99875.rs:17:11
    |
 LL |     takes(|_: Argument| -> Return { todo!() });
    |     ----- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
    |     |
    |     required by a bound introduced by this call
    |
-   = help: the trait `Trait` is not implemented for closure `{closure@$DIR/bare-fn-no-impl-fn-ptr-99875.rs:14:11: 14:34}`
+   = help: the trait `Trait` is not implemented for closure `{closure@$DIR/bare-fn-no-impl-fn-ptr-99875.rs:17:11: 17:34}`
    = help: the trait `Trait` is implemented for fn pointer `fn(Argument) -> Return`
 note: required by a bound in `takes`
-  --> $DIR/bare-fn-no-impl-fn-ptr-99875.rs:9:18
+  --> $DIR/bare-fn-no-impl-fn-ptr-99875.rs:12:18
    |
 LL | fn takes(_: impl Trait) {}
    |                  ^^^^^ required by this bound in `takes`