diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d83971b70be..9b35208bf32 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -406,7 +406,7 @@ jobs:
             os: windows-latest-xl
           - name: x86_64-msvc-cargo
             env:
-              SCRIPT: python x.py test src/tools/cargotest src/tools/cargo
+              SCRIPT: python x.py --stage 2 test src/tools/cargotest src/tools/cargo
               RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-msvc --enable-lld"
               VCVARS_BAT: vcvars64.bat
               NO_DEBUG_ASSERTIONS: 1
@@ -414,7 +414,7 @@ jobs:
             os: windows-latest-xl
           - name: x86_64-msvc-tools
             env:
-              SCRIPT: src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh x.py /tmp/toolstate/toolstates.json windows
+              SCRIPT: src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh x.py --stage 2 /tmp/toolstate/toolstates.json windows
               RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-msvc --save-toolstates=/tmp/toolstate/toolstates.json"
             os: windows-latest-xl
           - name: i686-mingw-1
@@ -598,7 +598,7 @@ jobs:
             os: macos-latest
           - name: x86_64-apple
             env:
-              SCRIPT: "./x.py test"
+              SCRIPT: "./x.py --stage 2 test"
               RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc"
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               MACOSX_DEPLOYMENT_TARGET: 10.8
diff --git a/src/ci/azure-pipelines/auto.yml b/src/ci/azure-pipelines/auto.yml
index 06e284c763c..2185b0d30db 100644
--- a/src/ci/azure-pipelines/auto.yml
+++ b/src/ci/azure-pipelines/auto.yml
@@ -36,7 +36,7 @@ jobs:
       # Note that the compiler is compiled to target 10.8 here because the Xcode
       # version that we're using, 8.2, cannot compile LLVM for OSX 10.7.
       x86_64-apple:
-        SCRIPT: ./x.py test
+        SCRIPT: ./x.py --stage 2 test
         INITIAL_RUST_CONFIGURE_ARGS: --build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc
         RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
         MACOSX_DEPLOYMENT_TARGET: 10.8
diff --git a/src/ci/docker/host-aarch64/aarch64-gnu/Dockerfile b/src/ci/docker/host-aarch64/aarch64-gnu/Dockerfile
index 114ac832cf5..b6cf60a5e15 100644
--- a/src/ci/docker/host-aarch64/aarch64-gnu/Dockerfile
+++ b/src/ci/docker/host-aarch64/aarch64-gnu/Dockerfile
@@ -23,4 +23,4 @@ ENV RUST_CONFIGURE_ARGS \
  --enable-sanitizers \
  --enable-profiler \
  --enable-compiler-docs
-ENV SCRIPT python3 ../x.py test
+ENV SCRIPT python3 ../x.py --stage 2 test
diff --git a/src/ci/docker/host-x86_64/arm-android/Dockerfile b/src/ci/docker/host-x86_64/arm-android/Dockerfile
index aa9335c473b..add2647fa1e 100644
--- a/src/ci/docker/host-x86_64/arm-android/Dockerfile
+++ b/src/ci/docker/host-x86_64/arm-android/Dockerfile
@@ -31,7 +31,7 @@ ENV TARGETS=arm-linux-androideabi
 
 ENV RUST_CONFIGURE_ARGS --arm-linux-androideabi-ndk=/android/ndk/arm-14
 
-ENV SCRIPT python3 ../x.py test --target $TARGETS
+ENV SCRIPT python3 ../x.py --stage 2 test --target $TARGETS
 
 COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
diff --git a/src/ci/docker/host-x86_64/armhf-gnu/Dockerfile b/src/ci/docker/host-x86_64/armhf-gnu/Dockerfile
index 71071761f05..1f3092c5513 100644
--- a/src/ci/docker/host-x86_64/armhf-gnu/Dockerfile
+++ b/src/ci/docker/host-x86_64/armhf-gnu/Dockerfile
@@ -78,6 +78,6 @@ COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
 
 ENV RUST_CONFIGURE_ARGS --qemu-armhf-rootfs=/tmp/rootfs
-ENV SCRIPT python3 ../x.py test --target arm-unknown-linux-gnueabihf
+ENV SCRIPT python3 ../x.py --stage 2 test --target arm-unknown-linux-gnueabihf
 
 ENV NO_CHANGE_USER=1
diff --git a/src/ci/docker/host-x86_64/disabled/asmjs/Dockerfile b/src/ci/docker/host-x86_64/disabled/asmjs/Dockerfile
index 3fa65511e94..a4d9f53ebab 100644
--- a/src/ci/docker/host-x86_64/disabled/asmjs/Dockerfile
+++ b/src/ci/docker/host-x86_64/disabled/asmjs/Dockerfile
@@ -33,7 +33,7 @@ ENV EMCC_CFLAGS=-O1
 # Emscripten installation is user-specific
 ENV NO_CHANGE_USER=1
 
-ENV SCRIPT python3 ../x.py test --target $TARGETS
+ENV SCRIPT python3 ../x.py --stage 2 test --target $TARGETS
 
 # This is almost identical to the wasm32-unknown-emscripten target, so
 # running with assertions again is not useful
diff --git a/src/ci/docker/host-x86_64/disabled/dist-armv7-android/Dockerfile b/src/ci/docker/host-x86_64/disabled/dist-armv7-android/Dockerfile
index 7227c41ccca..f986c38ea02 100644
--- a/src/ci/docker/host-x86_64/disabled/dist-armv7-android/Dockerfile
+++ b/src/ci/docker/host-x86_64/disabled/dist-armv7-android/Dockerfile
@@ -33,7 +33,7 @@ ENV RUST_CONFIGURE_ARGS \
 # build to finish we use --warn-unresolved-symbols. Note that the missing
 # symbols does not affect std, only the compiler (llvm) and cargo (openssl).
 ENV SCRIPT \
-  python3 ../x.py build src/llvm --host $HOSTS --target $HOSTS && \
+  python3 ../x.py --stage 2 build src/llvm --host $HOSTS --target $HOSTS && \
   (export RUSTFLAGS="\"-C link-arg=-Wl,--warn-unresolved-symbols\""; \
     rm /android/ndk/arm && \
     ln -s /android/ndk/arm-14 /android/ndk/arm && \
diff --git a/src/ci/docker/host-x86_64/disabled/dist-i686-android/Dockerfile b/src/ci/docker/host-x86_64/disabled/dist-i686-android/Dockerfile
index b74dcefa351..4dfbc725607 100644
--- a/src/ci/docker/host-x86_64/disabled/dist-i686-android/Dockerfile
+++ b/src/ci/docker/host-x86_64/disabled/dist-i686-android/Dockerfile
@@ -33,7 +33,7 @@ ENV RUST_CONFIGURE_ARGS \
 # build to finish we use --warn-unresolved-symbols. Note that the missing
 # symbols does not affect std, only the compiler (llvm) and cargo (openssl).
 ENV SCRIPT \
-  python3 ../x.py build src/llvm --host $HOSTS --target $HOSTS && \
+  python3 ../x.py --stage 2 build src/llvm --host $HOSTS --target $HOSTS && \
   (export RUSTFLAGS="\"-C link-arg=-Wl,--warn-unresolved-symbols\""; \
     rm /android/ndk/x86 && \
     ln -s /android/ndk/x86-14 /android/ndk/x86 && \
diff --git a/src/ci/docker/host-x86_64/disabled/riscv64gc-linux/Dockerfile b/src/ci/docker/host-x86_64/disabled/riscv64gc-linux/Dockerfile
index a938899636a..e3c35000eb8 100644
--- a/src/ci/docker/host-x86_64/disabled/riscv64gc-linux/Dockerfile
+++ b/src/ci/docker/host-x86_64/disabled/riscv64gc-linux/Dockerfile
@@ -97,6 +97,6 @@ COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
 
 ENV RUST_CONFIGURE_ARGS --qemu-riscv64-rootfs=/tmp/rootfs
-ENV SCRIPT python3 ../x.py test --target riscv64gc-unknown-linux-gnu
+ENV SCRIPT python3 ../x.py --stage 2 test --target riscv64gc-unknown-linux-gnu
 
 ENV NO_CHANGE_USER=1
diff --git a/src/ci/docker/host-x86_64/dist-i586-gnu-i586-i686-musl/Dockerfile b/src/ci/docker/host-x86_64/dist-i586-gnu-i586-i686-musl/Dockerfile
index 996fffeb871..162d7a1345c 100644
--- a/src/ci/docker/host-x86_64/dist-i586-gnu-i586-i686-musl/Dockerfile
+++ b/src/ci/docker/host-x86_64/dist-i586-gnu-i586-i686-musl/Dockerfile
@@ -46,5 +46,5 @@ ENV CFLAGS_i586_unknown_linux_musl=-Wa,-mrelax-relocations=no
 ENV TARGETS=i586-unknown-linux-gnu,i686-unknown-linux-musl
 
 ENV SCRIPT \
-      python3 ../x.py test --target $TARGETS && \
+      python3 ../x.py --stage 2 test --target $TARGETS && \
       python3 ../x.py dist --target $TARGETS,i586-unknown-linux-musl
diff --git a/src/ci/docker/host-x86_64/dist-various-1/Dockerfile b/src/ci/docker/host-x86_64/dist-various-1/Dockerfile
index ac228cfe01d..fdd777e824b 100644
--- a/src/ci/docker/host-x86_64/dist-various-1/Dockerfile
+++ b/src/ci/docker/host-x86_64/dist-various-1/Dockerfile
@@ -192,7 +192,7 @@ ENV RUST_CONFIGURE_ARGS \
       --disable-docs
 
 ENV SCRIPT \
-      python3 ../x.py test --target $RUN_MAKE_TARGETS src/test/run-make && \
+      python3 ../x.py --stage 2 test --target $RUN_MAKE_TARGETS src/test/run-make && \
       python3 ../x.py dist --target $TARGETS
 
 # sccache
diff --git a/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile b/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile
index 436215839f7..6a596b3465f 100644
--- a/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile
+++ b/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile
@@ -20,7 +20,7 @@ COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
 
 ENV RUST_CONFIGURE_ARGS --build=i686-unknown-linux-gnu --disable-optimize-tests
-ENV SCRIPT python3 ../x.py test
+ENV SCRIPT python3 ../x.py --stage 2 test
 
 # FIXME(#59637) takes too long on CI right now
 ENV NO_LLVM_ASSERTIONS=1 NO_DEBUG_ASSERTIONS=1
diff --git a/src/ci/docker/host-x86_64/i686-gnu/Dockerfile b/src/ci/docker/host-x86_64/i686-gnu/Dockerfile
index 34a76f39668..9d319017d79 100644
--- a/src/ci/docker/host-x86_64/i686-gnu/Dockerfile
+++ b/src/ci/docker/host-x86_64/i686-gnu/Dockerfile
@@ -22,7 +22,7 @@ RUN sh /scripts/sccache.sh
 ENV RUST_CONFIGURE_ARGS --build=i686-unknown-linux-gnu
 # Exclude some tests that are unlikely to be platform specific, to speed up
 # this slow job.
-ENV SCRIPT python3 ../x.py test \
+ENV SCRIPT python3 ../x.py --stage 2 test \
   --exclude src/bootstrap \
   --exclude src/test/rustdoc-js \
   --exclude src/tools/error_index_generator \
diff --git a/src/ci/docker/host-x86_64/mingw-check/Dockerfile b/src/ci/docker/host-x86_64/mingw-check/Dockerfile
index 0c59b95ea21..b902eda87bc 100644
--- a/src/ci/docker/host-x86_64/mingw-check/Dockerfile
+++ b/src/ci/docker/host-x86_64/mingw-check/Dockerfile
@@ -22,10 +22,10 @@ RUN sh /scripts/sccache.sh
 COPY host-x86_64/mingw-check/validate-toolstate.sh /scripts/
 
 ENV RUN_CHECK_WITH_PARALLEL_QUERIES 1
-ENV SCRIPT python3 ../x.py test src/tools/expand-yaml-anchors && \
+ENV SCRIPT python3 ../x.py --stage 2 test src/tools/expand-yaml-anchors && \
            python3 ../x.py check --target=i686-pc-windows-gnu --host=i686-pc-windows-gnu && \
            python3 ../x.py build --stage 0 src/tools/build-manifest && \
            python3 ../x.py test --stage 0 src/tools/compiletest && \
-           python3 ../x.py test src/tools/tidy && \
+           python3 ../x.py test --stage 2 src/tools/tidy && \
            python3 ../x.py doc --stage 0 library/std && \
            /scripts/validate-toolstate.sh
diff --git a/src/ci/docker/host-x86_64/test-various/Dockerfile b/src/ci/docker/host-x86_64/test-various/Dockerfile
index b7276f60867..c55a284e137 100644
--- a/src/ci/docker/host-x86_64/test-various/Dockerfile
+++ b/src/ci/docker/host-x86_64/test-various/Dockerfile
@@ -40,7 +40,7 @@ ENV RUST_CONFIGURE_ARGS \
 ENV NO_DEBUG_ASSERTIONS=1
 
 ENV WASM_TARGETS=wasm32-unknown-unknown
-ENV WASM_SCRIPT python3 /checkout/x.py test --target $WASM_TARGETS \
+ENV WASM_SCRIPT python3 /checkout/x.py --stage 2 test --target $WASM_TARGETS \
   src/test/run-make \
   src/test/ui \
   src/test/compile-fail \
@@ -49,13 +49,13 @@ ENV WASM_SCRIPT python3 /checkout/x.py test --target $WASM_TARGETS \
   library/core
 
 ENV NVPTX_TARGETS=nvptx64-nvidia-cuda
-ENV NVPTX_SCRIPT python3 /checkout/x.py test --target $NVPTX_TARGETS \
+ENV NVPTX_SCRIPT python3 /checkout/x.py --stage 2 test --target $NVPTX_TARGETS \
   src/test/run-make \
   src/test/assembly
 
 ENV MUSL_TARGETS=x86_64-unknown-linux-musl \
     CC_x86_64_unknown_linux_musl=x86_64-linux-musl-gcc \
     CXX_x86_64_unknown_linux_musl=x86_64-linux-musl-g++
-ENV MUSL_SCRIPT python3 /checkout/x.py test --target $MUSL_TARGETS
+ENV MUSL_SCRIPT python3 /checkout/x.py --stage 2 test --target $MUSL_TARGETS
 
 ENV SCRIPT $WASM_SCRIPT && $NVPTX_SCRIPT && $MUSL_SCRIPT
diff --git a/src/ci/docker/host-x86_64/wasm32/Dockerfile b/src/ci/docker/host-x86_64/wasm32/Dockerfile
index a40ccb6bfd5..e00177b4a67 100644
--- a/src/ci/docker/host-x86_64/wasm32/Dockerfile
+++ b/src/ci/docker/host-x86_64/wasm32/Dockerfile
@@ -52,7 +52,7 @@ ENV NO_CHANGE_USER=1
 
 # FIXME: Re-enable these tests once https://github.com/rust-lang/cargo/pull/7476
 # is picked up by CI
-ENV SCRIPT python3 ../x.py test --target $TARGETS \
+ENV SCRIPT python3 ../x.py test --stage 2 --target $TARGETS \
     --exclude library/core \
     --exclude library/alloc \
     --exclude library/proc_macro \
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-debug/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-debug/Dockerfile
index c5e41b8a75a..c1cb20b631d 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-debug/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-debug/Dockerfile
@@ -40,5 +40,5 @@ ENV RUST_CONFIGURE_ARGS \
       --set target.x86_64-unknown-linux-gnu.cxx=clang++
 
 ENV SCRIPT \
-  python3 ../x.py build && \
-  python3 ../x.py test src/test/run-make-fulldeps --test-args clang
+  python3 ../x.py --stage 2 build && \
+  python3 ../x.py --stage 2 test src/test/run-make-fulldeps --test-args clang
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile
index cc07a591cc1..68e89a7bade 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile
@@ -19,10 +19,10 @@ COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
 
 ENV RUST_CONFIGURE_ARGS --build=x86_64-unknown-linux-gnu --set rust.ignore-git=false
-ENV SCRIPT python3 ../x.py test distcheck
+ENV SCRIPT python3 ../x.py --stage 2 test distcheck
 ENV DIST_SRC 1
 
-# The purpose of this builder is to test that we can `./x.py test` successfully
+# The purpose of this builder is to test that we can `./x.py --stage 2 test` successfully
 # from a tarball, not to test LLVM/rustc's own set of assertions. These cause a
 # significant hit to CI compile time (over a half hour as observed in #61185),
 # so disable assertions for this builder.
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-full-bootstrap/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-full-bootstrap/Dockerfile
index de7ee6950b5..8648e5ed7a4 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-full-bootstrap/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-full-bootstrap/Dockerfile
@@ -21,7 +21,7 @@ RUN sh /scripts/sccache.sh
 ENV RUST_CONFIGURE_ARGS \
       --build=x86_64-unknown-linux-gnu \
       --enable-full-bootstrap
-ENV SCRIPT python3 ../x.py build
+ENV SCRIPT python3 ../x.py --stage 2 build
 
 # In general this just slows down the build and we're just a smoke test that
 # a full bootstrap works in general, so there's not much need to take this
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-8/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-8/Dockerfile
index 1d9cad149d9..5c971c73c97 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-8/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-8/Dockerfile
@@ -30,7 +30,7 @@ ENV RUST_CONFIGURE_ARGS \
       --enable-llvm-link-shared \
       --set rust.thin-lto-import-instr-limit=10
 
-ENV SCRIPT python2.7 ../x.py test --exclude src/tools/tidy && \
+ENV SCRIPT python2.7 ../x.py --stage 2 test --exclude src/tools/tidy && \
            # Run the `mir-opt` tests again but this time for a 32-bit target.
            # This enforces that tests using `// EMIT_MIR_FOR_EACH_BIT_WIDTH` have
            # both 32-bit and 64-bit outputs updated by the PR author, before
@@ -43,7 +43,7 @@ ENV SCRIPT python2.7 ../x.py test --exclude src/tools/tidy && \
            # This also requires `--pass=build` because we can't execute the tests
            # on the `x86_64` host when they're built as `armv5te` binaries.
            # (we're only interested in the MIR output, so this doesn't matter)
-           python2.7 ../x.py test src/test/mir-opt --pass=build \
+           python2.7 ../x.py --stage 2 test src/test/mir-opt --pass=build \
                                   --target=armv5te-unknown-linux-gnueabi && \
            # Run the UI test suite again, but in `--pass=check` mode
            #
@@ -53,9 +53,9 @@ ENV SCRIPT python2.7 ../x.py test --exclude src/tools/tidy && \
            # FIXME: We ideally want to test this in 32-bit mode, but currently
            # (due to the LLVM problems mentioned above) that isn't readily
            # possible.
-           python2.7 ../x.py test src/test/ui --pass=check && \
+           python2.7 ../x.py --stage 2 test src/test/ui --pass=check && \
            # Run tidy at the very end, after all the other tests.
-           python2.7 ../x.py test src/tools/tidy
+           python2.7 ../x.py --stage 2 test src/tools/tidy
 
 # The purpose of this container isn't to test with debug assertions and
 # this is run on all PRs, so let's get speedier builds by disabling these extra
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-nopt/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-nopt/Dockerfile
index 096f67e13d1..fa769cac9c1 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-nopt/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-nopt/Dockerfile
@@ -21,4 +21,4 @@ RUN sh /scripts/sccache.sh
 ENV RUST_CONFIGURE_ARGS --build=x86_64-unknown-linux-gnu \
   --disable-optimize-tests \
   --set rust.test-compare-mode
-ENV SCRIPT python3 ../x.py test
+ENV SCRIPT python3 ../x.py --stage 2 test
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile
index ef17f0507ab..e99b3f6ec37 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile
@@ -22,4 +22,4 @@ COPY host-x86_64/x86_64-gnu-tools/checktools.sh /tmp/
 ENV RUST_CONFIGURE_ARGS \
   --build=x86_64-unknown-linux-gnu \
   --save-toolstates=/tmp/toolstate/toolstates.json
-ENV SCRIPT /tmp/checktools.sh ../x.py
+ENV SCRIPT /tmp/checktools.sh ../x.py --stage 2
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu/Dockerfile
index af6e1318062..f8bacf79ac0 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu/Dockerfile
@@ -23,4 +23,4 @@ ENV RUST_CONFIGURE_ARGS \
  --enable-sanitizers \
  --enable-profiler \
  --enable-compiler-docs
-ENV SCRIPT python3 ../x.py test
+ENV SCRIPT python3 ../x.py --stage 2 test
diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml
index 0aeb6a04e5f..b31f00c0322 100644
--- a/src/ci/github-actions/ci.yml
+++ b/src/ci/github-actions/ci.yml
@@ -471,7 +471,7 @@ jobs:
 
           - name: x86_64-msvc-cargo
             env:
-              SCRIPT: python x.py test src/tools/cargotest src/tools/cargo
+              SCRIPT: python x.py --stage 2 test src/tools/cargotest src/tools/cargo
               RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-lld
               VCVARS_BAT: vcvars64.bat
               # FIXME(#59637)
@@ -481,7 +481,7 @@ jobs:
 
           - name: x86_64-msvc-tools
             env:
-              SCRIPT: src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh x.py /tmp/toolstate/toolstates.json windows
+              SCRIPT: src/ci/docker/host-x86_64/x86_64-gnu-tools/checktools.sh x.py --stage 2 /tmp/toolstate/toolstates.json windows
               RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --save-toolstates=/tmp/toolstate/toolstates.json
             <<: *job-windows-xl
 
@@ -613,7 +613,7 @@ jobs:
 
           - name: x86_64-apple
             env:
-              SCRIPT: ./x.py test
+              SCRIPT: ./x.py --stage 2 test
               RUST_CONFIGURE_ARGS: --build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               MACOSX_DEPLOYMENT_TARGET: 10.8