message: Windows CI: rely on stable cargo
diff: @@ -29,10 +29,8 @@ install:
  - rustup toolchain uninstall beta nightly
  - rustup update
  # Install "master" toolchain.
  -# We need to install cargo here as well or else the DLL search path inside `cargo run`
  -# will be for the wrong toolchain. (On Unix, `./miri` takes care of this, but not here.)
  - cargo install rustup-toolchain-install-master
  -- rustup-toolchain-install-master -f -n master %RUSTC_HASH% -c rust-src -c rustc-dev -c cargo
  +- rustup-toolchain-install-master -f -n master %RUSTC_HASH% -c rust-src -c rustc-dev
  - rustup default master
  - rustc --version
  - cargo --version
  