Use GitHub Actions M1 builder for aarch64-apple-darwin

Additionally, this enables

1. building the documentation
2. Setting `rust.lto` to `thin` to match the x86_64 build

.github/workflows/ci.yml

@@ -348,8 +348,8 @@ jobs:
             os: macos-13
           - name: dist-aarch64-apple
             env:
-              SCRIPT: "./x.py dist bootstrap --include-default-paths --stage 2"
-              RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --host=aarch64-apple-darwin --target=aarch64-apple-darwin --enable-full-tools --enable-sanitizers --enable-profiler --disable-docs --set rust.jemalloc --set llvm.ninja=false"
+              SCRIPT: "./x.py dist bootstrap --include-default-paths --host=aarch64-apple-darwin --target=aarch64-apple-darwin"
+              RUST_CONFIGURE_ARGS: "--enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false --set rust.lto=thin"
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
               USE_XCODE_CLANG: 1
@@ -359,8 +359,7 @@ jobs:
               NO_DEBUG_ASSERTIONS: 1
               NO_OVERFLOW_CHECKS: 1
               DIST_REQUIRE_ALL_TOOLS: 1
-              JEMALLOC_SYS_WITH_LG_PAGE: 14
-            os: macos-13
+            os: macos-13-xlarge
           - name: x86_64-msvc
             env:
               RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-msvc --enable-profiler"

src/ci/github-actions/ci.yml

@@ -91,6 +91,10 @@ x--expand-yaml-anchors--remove:
     os: macos-13 # We use the standard runner for now
     <<: *base-job
 
+  - &job-macos-m1
+    os: macos-13-xlarge
+    <<: *base-job
+
   - &job-windows-8c
     os: windows-2019-8core-32gb
     <<: *base-job
@@ -527,17 +531,14 @@ jobs:
           # This target only needs to support 11.0 and up as nothing else supports the hardware
           - name: dist-aarch64-apple
             env:
-              SCRIPT: ./x.py dist bootstrap --include-default-paths --stage 2
+              SCRIPT: ./x.py dist bootstrap --include-default-paths --host=aarch64-apple-darwin --target=aarch64-apple-darwin
               RUST_CONFIGURE_ARGS: >-
-                --build=x86_64-apple-darwin
-                --host=aarch64-apple-darwin
-                --target=aarch64-apple-darwin
                 --enable-full-tools
                 --enable-sanitizers
                 --enable-profiler
-                --disable-docs
                 --set rust.jemalloc
                 --set llvm.ninja=false
+                --set rust.lto=thin
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
               USE_XCODE_CLANG: 1
@@ -547,15 +548,7 @@ jobs:
               NO_DEBUG_ASSERTIONS: 1
               NO_OVERFLOW_CHECKS: 1
               DIST_REQUIRE_ALL_TOOLS: 1
-              # Corresponds to 16K page size
-              #
-              # Shouldn't be needed if jemalloc-sys is updated to
-              # handle this platform like iOS or if we build on
-              # aarch64-apple-darwin itself.
-              #
-              # https://github.com/gnzlbg/jemallocator/blob/c27a859e98e3cb790dc269773d9da71a1e918458/jemalloc-sys/build.rs#L237
-              JEMALLOC_SYS_WITH_LG_PAGE: 14
-            <<: *job-macos-xl
+            <<: *job-macos-m1
 
           ######################
           #  Windows Builders  #