Auto merge of rust-lang#75261 - Mark-Simulacrum:beta-next, r=Mark-Simulacrum

[beta] backports

* Forbid non-derefable types explicitly in unsizing casts rust-lang#75136
* forbid `#[track_caller]` on main rust-lang#75130
* Fix #[track_caller] shims for trait objects. rust-lang#74784
* rustc_target: Add a target spec option for disabling `--eh-frame-hdr` rust-lang#74631
* Disable Azure Pipelines except for macOS rust-lang#74620
* Upload builds from GHA instead of Azure Pipelines rust-lang#74565
* Add the aarch64-apple-darwin target rust-lang#74541
* Use `ReEmpty(U0)` as the implicit region bound in typeck rust-lang#74509
* rustbuild: drop tool::should_install rust-lang#74457
* lint: use `transparent_newtype_field` to avoid ICE rust-lang#74340
* Don't panic if the lhs of a div by zero is not statically known rust-lang#74221
* improper_ctypes_definitions: allow `Box` rust-lang#74448
* typeck: check for infer before type impls trait rust-lang#73965

Author: bors

Diff for: .github/workflows/ci.yml

@@ -32,9 +32,9 @@ jobs:
     name: PR
     env:
       CI_JOB_NAME: "${{ matrix.name }}"
-      SCCACHE_BUCKET: rust-lang-gha-caches
-      TOOLSTATE_REPO: "https://github.com/pietroalbini/rust-toolstate"
-      CACHE_DOMAIN: ci-caches-gha.rust-lang.org
+      SCCACHE_BUCKET: rust-lang-ci-sccache2
+      TOOLSTATE_REPO: "https://github.com/rust-lang-nursery/rust-toolstate"
+      CACHE_DOMAIN: ci-caches.rust-lang.org
     if: "github.event_name == 'pull_request'"
     strategy:
       matrix:
@@ -63,6 +63,11 @@ jobs:
         with:
           github_token: "${{ secrets.github_token }}"
         if: "success() && !env.SKIP_JOB && github.ref != 'refs/heads/try'"
+      - name: configure the PR in which the error message will be posted
+        run: "echo \"[CI_PR_NUMBER=$num]\""
+        env:
+          num: "${{ github.event.number }}"
+        if: "success() && !env.SKIP_JOBS && github.event_name == 'pull_request'"
       - name: add extra environment variables
         run: src/ci/scripts/setup-environment.sh
         env:
@@ -133,14 +138,14 @@ jobs:
     name: try
     env:
       CI_JOB_NAME: "${{ matrix.name }}"
-      SCCACHE_BUCKET: rust-lang-gha-caches
-      DEPLOY_BUCKET: rust-lang-gha
-      TOOLSTATE_REPO: "https://github.com/pietroalbini/rust-toolstate"
-      TOOLSTATE_ISSUES_API_URL: "https://api.github.com/repos/pietroalbini/rust-toolstate/issues"
+      SCCACHE_BUCKET: rust-lang-ci-sccache2
+      DEPLOY_BUCKET: rust-lang-ci2
+      TOOLSTATE_REPO: "https://github.com/rust-lang-nursery/rust-toolstate"
+      TOOLSTATE_ISSUES_API_URL: "https://api.github.com/repos/rust-lang/rust/issues"
       TOOLSTATE_PUBLISH: 1
-      CACHES_AWS_ACCESS_KEY_ID: AKIA46X5W6CZOMUQATD5
-      ARTIFACTS_AWS_ACCESS_KEY_ID: AKIA46X5W6CZH5AYXDVF
-      CACHE_DOMAIN: ci-caches-gha.rust-lang.org
+      CACHES_AWS_ACCESS_KEY_ID: AKIA46X5W6CZI5DHEBFL
+      ARTIFACTS_AWS_ACCESS_KEY_ID: AKIA46X5W6CZN24CBO55
+      CACHE_DOMAIN: ci-caches.rust-lang.org
     if: "github.event_name == 'push' && github.ref == 'refs/heads/try' && github.repository == 'rust-lang-ci/rust'"
     strategy:
       matrix:
@@ -162,6 +167,11 @@ jobs:
         with:
           github_token: "${{ secrets.github_token }}"
         if: "success() && !env.SKIP_JOB && github.ref != 'refs/heads/try'"
+      - name: configure the PR in which the error message will be posted
+        run: "echo \"[CI_PR_NUMBER=$num]\""
+        env:
+          num: "${{ github.event.number }}"
+        if: "success() && !env.SKIP_JOBS && github.event_name == 'pull_request'"
       - name: add extra environment variables
         run: src/ci/scripts/setup-environment.sh
         env:
@@ -232,14 +242,14 @@ jobs:
     name: auto
     env:
       CI_JOB_NAME: "${{ matrix.name }}"
-      SCCACHE_BUCKET: rust-lang-gha-caches
-      DEPLOY_BUCKET: rust-lang-gha
-      TOOLSTATE_REPO: "https://github.com/pietroalbini/rust-toolstate"
-      TOOLSTATE_ISSUES_API_URL: "https://api.github.com/repos/pietroalbini/rust-toolstate/issues"
+      SCCACHE_BUCKET: rust-lang-ci-sccache2
+      DEPLOY_BUCKET: rust-lang-ci2
+      TOOLSTATE_REPO: "https://github.com/rust-lang-nursery/rust-toolstate"
+      TOOLSTATE_ISSUES_API_URL: "https://api.github.com/repos/rust-lang/rust/issues"
       TOOLSTATE_PUBLISH: 1
-      CACHES_AWS_ACCESS_KEY_ID: AKIA46X5W6CZOMUQATD5
-      ARTIFACTS_AWS_ACCESS_KEY_ID: AKIA46X5W6CZH5AYXDVF
-      CACHE_DOMAIN: ci-caches-gha.rust-lang.org
+      CACHES_AWS_ACCESS_KEY_ID: AKIA46X5W6CZI5DHEBFL
+      ARTIFACTS_AWS_ACCESS_KEY_ID: AKIA46X5W6CZN24CBO55
+      CACHE_DOMAIN: ci-caches.rust-lang.org
     if: "github.event_name == 'push' && github.ref == 'refs/heads/auto' && github.repository == 'rust-lang-ci/rust'"
     strategy:
       matrix:
@@ -473,6 +483,11 @@ jobs:
         with:
           github_token: "${{ secrets.github_token }}"
         if: "success() && !env.SKIP_JOB && github.ref != 'refs/heads/try'"
+      - name: configure the PR in which the error message will be posted
+        run: "echo \"[CI_PR_NUMBER=$num]\""
+        env:
+          num: "${{ github.event.number }}"
+        if: "success() && !env.SKIP_JOBS && github.event_name == 'pull_request'"
       - name: add extra environment variables
         run: src/ci/scripts/setup-environment.sh
         env:
@@ -598,6 +613,11 @@ jobs:
         with:
           github_token: "${{ secrets.github_token }}"
         if: "success() && !env.SKIP_JOB && github.ref != 'refs/heads/try'"
+      - name: configure the PR in which the error message will be posted
+        run: "echo \"[CI_PR_NUMBER=$num]\""
+        env:
+          num: "${{ github.event.number }}"
+        if: "success() && !env.SKIP_JOBS && github.event_name == 'pull_request'"
       - name: add extra environment variables
         run: src/ci/scripts/setup-environment.sh
         env:
@@ -668,14 +688,14 @@ jobs:
     name: master
     runs-on: ubuntu-latest
     env:
-      SCCACHE_BUCKET: rust-lang-gha-caches
-      DEPLOY_BUCKET: rust-lang-gha
-      TOOLSTATE_REPO: "https://github.com/pietroalbini/rust-toolstate"
-      TOOLSTATE_ISSUES_API_URL: "https://api.github.com/repos/pietroalbini/rust-toolstate/issues"
+      SCCACHE_BUCKET: rust-lang-ci-sccache2
+      DEPLOY_BUCKET: rust-lang-ci2
+      TOOLSTATE_REPO: "https://github.com/rust-lang-nursery/rust-toolstate"
+      TOOLSTATE_ISSUES_API_URL: "https://api.github.com/repos/rust-lang/rust/issues"
       TOOLSTATE_PUBLISH: 1
-      CACHES_AWS_ACCESS_KEY_ID: AKIA46X5W6CZOMUQATD5
-      ARTIFACTS_AWS_ACCESS_KEY_ID: AKIA46X5W6CZH5AYXDVF
-      CACHE_DOMAIN: ci-caches-gha.rust-lang.org
+      CACHES_AWS_ACCESS_KEY_ID: AKIA46X5W6CZI5DHEBFL
+      ARTIFACTS_AWS_ACCESS_KEY_ID: AKIA46X5W6CZN24CBO55
+      CACHE_DOMAIN: ci-caches.rust-lang.org
     if: "github.event_name == 'push' && github.ref == 'refs/heads/master' && github.repository == 'rust-lang-ci/rust'"
     steps:
       - name: checkout the source code

Diff for: src/bootstrap/install.rs

@@ -159,11 +159,6 @@ macro_rules! install {
                 config.extended && config.tools.as_ref()
                     .map_or(true, |t| t.contains($path))
             }
-
-            #[allow(dead_code)]
-            fn should_install(builder: &Builder<'_>) -> bool {
-                builder.config.tools.as_ref().map_or(false, |t| t.contains($path))
-            }
         }
 
         impl Step for $name {
@@ -210,8 +205,7 @@ install!((self, builder, _config),
         install_cargo(builder, self.compiler.stage, self.target);
     };
     Rls, "rls", Self::should_build(_config), only_hosts: true, {
-        if builder.ensure(dist::Rls { compiler: self.compiler, target: self.target }).is_some() ||
-            Self::should_install(builder) {
+        if builder.ensure(dist::Rls { compiler: self.compiler, target: self.target }).is_some() {
             install_rls(builder, self.compiler.stage, self.target);
         } else {
             builder.info(
@@ -221,27 +215,14 @@ install!((self, builder, _config),
     };
     RustAnalyzer, "rust-analyzer", Self::should_build(_config), only_hosts: true, {
         builder.ensure(dist::RustAnalyzer { compiler: self.compiler, target: self.target });
-        if Self::should_install(builder) {
-            install_rust_analyzer(builder, self.compiler.stage, self.target);
-        } else {
-            builder.info(
-                &format!("skipping Install rust-analyzer stage{} ({})", self.compiler.stage, self.target),
-            );
-        }
+        install_rust_analyzer(builder, self.compiler.stage, self.target);
     };
     Clippy, "clippy", Self::should_build(_config), only_hosts: true, {
         builder.ensure(dist::Clippy { compiler: self.compiler, target: self.target });
-        if Self::should_install(builder) {
-            install_clippy(builder, self.compiler.stage, self.target);
-        } else {
-            builder.info(
-                &format!("skipping Install clippy stage{} ({})", self.compiler.stage, self.target),
-            );
-        }
+        install_clippy(builder, self.compiler.stage, self.target);
     };
     Miri, "miri", Self::should_build(_config), only_hosts: true, {
-        if builder.ensure(dist::Miri { compiler: self.compiler, target: self.target }).is_some() ||
-            Self::should_install(builder) {
+        if builder.ensure(dist::Miri { compiler: self.compiler, target: self.target }).is_some() {
             install_miri(builder, self.compiler.stage, self.target);
         } else {
             builder.info(
@@ -253,7 +234,7 @@ install!((self, builder, _config),
         if builder.ensure(dist::Rustfmt {
             compiler: self.compiler,
             target: self.target
-        }).is_some() || Self::should_install(builder) {
+        }).is_some() {
             install_rustfmt(builder, self.compiler.stage, self.target);
         } else {
             builder.info(

Diff for: src/ci/azure-pipelines/auto.yml

@@ -10,73 +10,23 @@
 #####################################
 
 #
-# Azure Pipelines "auto" branch build for Rust on Linux, macOS, and Windows.
+# Azure Pipelines "auto" branch build for Rust on macOS
 #
 
 pr: none
 trigger:
   - auto
 
-variables:
-- group: prod-credentials
-
 jobs:
-- job: Linux
-  timeoutInMinutes: 600
-  pool:
-    vmImage: ubuntu-16.04
-  steps:
-  - template: steps/run.yml
-  strategy:
-    matrix:
-      x86_64-gnu-llvm-8:
-        RUST_BACKTRACE: 1
-      dist-x86_64-linux: {}
-      dist-x86_64-linux-alt:
-        IMAGE: dist-x86_64-linux
-      arm-android: {}
-      armhf-gnu: {}
-      dist-various-1: {}
-      dist-various-2: {}
-      dist-aarch64-linux: {}
-      dist-android: {}
-      dist-arm-linux: {}
-      dist-armhf-linux: {}
-      dist-armv7-linux: {}
-      dist-i586-gnu-i586-i686-musl: {}
-      dist-i686-freebsd: {}
-      dist-i686-linux: {}
-      dist-mips-linux: {}
-      dist-mips64-linux: {}
-      dist-mips64el-linux: {}
-      dist-mipsel-linux: {}
-      dist-powerpc-linux: {}
-      dist-powerpc64-linux: {}
-      dist-powerpc64le-linux: {}
-      dist-s390x-linux: {}
-      dist-x86_64-freebsd: {}
-      dist-x86_64-musl: {}
-      dist-x86_64-netbsd: {}
-      i686-gnu: {}
-      i686-gnu-nopt: {}
-      test-various: {}
-      wasm32: {}
-      x86_64-gnu: {}
-      x86_64-gnu-full-bootstrap: {}
-      x86_64-gnu-aux: {}
-      x86_64-gnu-tools:
-        DEPLOY_TOOLSTATES_JSON: toolstates-linux.json
-      x86_64-gnu-debug: {}
-      x86_64-gnu-nopt: {}
-      x86_64-gnu-distcheck: {}
-      mingw-check: {}
-
 - job: macOS
   timeoutInMinutes: 600
   pool:
     vmImage: macos-10.15
   steps:
   - template: steps/run.yml
+  variables:
+    # We're still uploading macOS builds from Azure Pipelines.
+    - group: prod-credentials
   strategy:
     matrix:
       # OSX builders running tests, these run the full test suite.
@@ -110,115 +60,3 @@ jobs:
         MACOSX_DEPLOYMENT_TARGET: 10.7
         NO_LLVM_ASSERTIONS: 1
         NO_DEBUG_ASSERTIONS: 1
-
-
-- job: Windows
-  timeoutInMinutes: 600
-  pool:
-    vmImage: 'vs2017-win2016'
-  steps:
-  - template: steps/run.yml
-  strategy:
-    matrix:
-      # 32/64 bit MSVC tests
-      x86_64-msvc-1:
-        INITIAL_RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-profiler
-        SCRIPT: make ci-subset-1
-        # FIXME(#59637)
-        NO_DEBUG_ASSERTIONS: 1
-        NO_LLVM_ASSERTIONS: 1
-      x86_64-msvc-2:
-        INITIAL_RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-profiler
-        SCRIPT: make ci-subset-2
-      i686-msvc-1:
-        INITIAL_RUST_CONFIGURE_ARGS: --build=i686-pc-windows-msvc
-        SCRIPT: make ci-subset-1
-        # FIXME(#59637)
-        NO_DEBUG_ASSERTIONS: 1
-        NO_LLVM_ASSERTIONS: 1
-      i686-msvc-2:
-        INITIAL_RUST_CONFIGURE_ARGS: --build=i686-pc-windows-msvc
-        SCRIPT: make ci-subset-2
-        # FIXME(#59637)
-        NO_DEBUG_ASSERTIONS: 1
-        NO_LLVM_ASSERTIONS: 1
-      x86_64-msvc-cargo:
-        SCRIPT: python x.py test src/tools/cargotest src/tools/cargo
-        INITIAL_RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-lld
-        VCVARS_BAT: vcvars64.bat
-        # FIXME(#59637)
-        NO_DEBUG_ASSERTIONS: 1
-        NO_LLVM_ASSERTIONS: 1
-      # MSVC tools tests
-      x86_64-msvc-tools:
-        SCRIPT: src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh x.py
-        INITIAL_RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --save-toolstates=/tmp/toolstate/toolstates.json
-
-      # 32/64-bit MinGW builds.
-      #
-      # We are using MinGW with posix threads since LLVM does not compile with
-      # the win32 threads version due to missing support for C++'s std::thread.
-      #
-      # Instead of relying on the MinGW version installed on appveryor we download
-      # and install one ourselves so we won't be surprised by changes to appveyor's
-      # build image.
-      #
-      # Finally, note that the downloads below are all in the `rust-lang-ci` S3
-      # bucket, but they cleraly didn't originate there! The downloads originally
-      # came from the mingw-w64 SourceForge download site. Unfortunately
-      # SourceForge is notoriously flaky, so we mirror it on our own infrastructure.
-      i686-mingw-1:
-        INITIAL_RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu
-        SCRIPT: make ci-mingw-subset-1
-        CUSTOM_MINGW: 1
-        # FIXME(#59637)
-        NO_DEBUG_ASSERTIONS: 1
-        NO_LLVM_ASSERTIONS: 1
-      i686-mingw-2:
-        INITIAL_RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu
-        SCRIPT: make ci-mingw-subset-2
-        CUSTOM_MINGW: 1
-      x86_64-mingw-1:
-        SCRIPT: make ci-mingw-subset-1
-        INITIAL_RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu
-        CUSTOM_MINGW: 1
-        # FIXME(#59637)
-        NO_DEBUG_ASSERTIONS: 1
-        NO_LLVM_ASSERTIONS: 1
-      x86_64-mingw-2:
-        SCRIPT: make ci-mingw-subset-2
-        INITIAL_RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu
-        CUSTOM_MINGW: 1
-
-      # 32/64 bit MSVC and GNU deployment
-      dist-x86_64-msvc:
-        INITIAL_RUST_CONFIGURE_ARGS: >-
-          --build=x86_64-pc-windows-msvc
-          --target=x86_64-pc-windows-msvc,aarch64-pc-windows-msvc
-          --enable-full-tools
-          --enable-profiler
-        SCRIPT: python x.py dist
-        DIST_REQUIRE_ALL_TOOLS: 1
-      dist-i686-msvc:
-        INITIAL_RUST_CONFIGURE_ARGS: >-
-          --build=i686-pc-windows-msvc
-          --target=i586-pc-windows-msvc
-          --enable-full-tools
-          --enable-profiler
-        SCRIPT: python x.py dist
-        DIST_REQUIRE_ALL_TOOLS: 1
-      dist-i686-mingw:
-        INITIAL_RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu --enable-full-tools --enable-profiler
-        SCRIPT: python x.py dist
-        CUSTOM_MINGW: 1
-        DIST_REQUIRE_ALL_TOOLS: 1
-      dist-x86_64-mingw:
-        SCRIPT: python x.py dist
-        INITIAL_RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu --enable-full-tools --enable-profiler
-        CUSTOM_MINGW: 1
-        DIST_REQUIRE_ALL_TOOLS: 1
-
-      # "alternate" deployment, see .travis.yml for more info
-      dist-x86_64-msvc-alt:
-        INITIAL_RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-extended --enable-profiler
-        SCRIPT: python x.py dist