Support specifying target triple

action.yml

@@ -6,6 +6,9 @@ inputs:
   toolchain:
     description: Rust toolchain specification -- see https://rust-lang.github.io/rustup/concepts/toolchains.html#toolchain-specification
     required: true
+  target:
+    description: Target triple to install for this toolchain
+    required: false
 
 outputs:
   version:
@@ -16,7 +19,7 @@ runs:
   using: composite
   steps:
     - name: rustup toolchain install ${{inputs.toolchain}}
-      run: rustup toolchain install ${{inputs.toolchain}} --profile minimal --no-self-update
+      run: rustup toolchain install ${{inputs.toolchain}}${{inputs.target && format(' --target {0}', inputs.target)}} --profile minimal --no-self-update
       shell: bash
     - run: rustup default ${{inputs.toolchain}}
       shell: bash