Environment: MSYS_BITS=64, SCRIPT=src/ci/docker/x86_64-gnu-tools/checktools.sh x.py /tmp/toolstates.json windows, RUST_CONFIGURE_ARGS=--build=x86_64-pc-windows-msvc --save-toolstates=/tmp/toolstates.json --enable-test-miri, CI_JOB_NAME=x86_64-msvc-tools