- - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin;C:\Users\appveyor\.rustup\toolchains\nightly-%TARGET%\bin
- - if defined MSYS2_BITS set PATH=%PATH%;C:\msys64\mingw%MSYS2_BITS%\bin
- - cargo install rustup-toolchain-install-master || echo "rustup-toolchain-install-master already installed"
- - rustup-toolchain-install-master -f -n master
+ - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
+ - git ls-remote https://github.com/rust-lang/rust.git master | awk '{print $1}' >rustc-hash.txt
+ - set /p RUSTC_HASH=<rustc-hash.txt
+ - del rust-toolchain
+ - cargo install rustup-toolchain-install-master --debug || echo "rustup-toolchain-install-master already installed"
+ - rustup-toolchain-install-master %RUSTC_HASH% -f -n master