Merge pull request #9 from rustwasm/ci-fix

fix(ci): Installing rust on Windows

Author: drager

ci/azure-install-rust.yml

@@ -10,10 +10,7 @@ steps:
     env:
       TOOLCHAIN: ${{ parameters.toolchain }}
 
-  - script: |
-      curl -sSf -o rustup-init.exe https://win.rustup.rs
-      rustup-init.exe -y --default-toolchain %TOOLCHAIN%
-      echo "##vso[task.setvariable variable=PATH;]%PATH%;%USERPROFILE%\.cargo\bin"
+  - bash: rustup update --no-self-update $TOOLCHAIN && rustup default $TOOLCHAIN
     displayName: Install rust - Windows
     condition: eq( variables['Agent.OS'], 'Windows_NT' )
     env: