install required rust toolchains

Author: danrmiller

.github/workflows/test.yaml

@@ -25,7 +25,7 @@ jobs:
       - name: install dependencies
         run: |
           cargo install cargo-ndk
-          rustup install 1.89.0
+          rustup install 1.85.1 1.89.0
           rustup target add x86_64-unknown-linux-gnu --toolchain 1.89.0
           sudo apt update
           sudo apt install -y meson ninja-build libglib2.0-dev libgcrypt20-dev libgirepository1.0-dev unzip automake build-essential file pkg-config git python3 libtool cmake openjdk-8-jre-headless libgit2-dev clang libncurses5-dev libncursesw5-dev zlib1g-dev llvm debhelper libclang-dev opencl-headers libssl-dev ocl-icd-opencl-dev libc6-dev-i386 valac libtss2-dev