Include miri, drop cargotest

Author: ehuss

src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh

@@ -8,6 +8,10 @@ X_PY="$1"
 
 # Try to test the toolstate-tracked tools and store the build/test success in the TOOLSTATE_FILE.
 
+# Pre-build the compiler and the library first to output a better error message when the build
+# itself fails (see https://github.com/rust-lang/rust/issues/127869 for context).
+python3 "$X_PY" build --stage 2 compiler rustdoc
+
 set +e
 python3 "$X_PY" test --stage 2 --no-fail-fast \
     src/doc/book \

src/ci/github-actions/jobs.yml

@@ -82,14 +82,14 @@ envs:
 pr:
   - image: x86_64-msvc-ext1
     env:
-      SCRIPT: python x.py --stage 2 test src/tools/cargotest src/tools/cargo
+      SCRIPT: python x.py --stage 2 test src/tools/cargo && src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh x.py /tmp/toolstate/toolstates.json windows
       HOST_TARGET: x86_64-pc-windows-msvc
       RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-lld --save-toolstates=/tmp/toolstate/toolstates.json --set build.cargo=C:/a/rust/rust/cargo.exe
       DEPLOY_TOOLSTATES_JSON: toolstates-windows.json
     <<: *job-windows-8c
   - image: x86_64-msvc-ext2
     env:
-      SCRIPT: python x.py --stage 2 test src/tools/cargotest src/tools/cargo
+      SCRIPT: python x.py --stage 2 test src/tools/cargo && src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh x.py /tmp/toolstate/toolstates.json windows
       HOST_TARGET: x86_64-pc-windows-msvc
       RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-lld --save-toolstates=/tmp/toolstate/toolstates.json --set build.cargo=C:/a/rust/rust/cargo.exe
       DEPLOY_TOOLSTATES_JSON: toolstates-windows.json