Add rust toolchain file

Author: rishflab

.github/workflows/ci.yml

@@ -43,7 +43,6 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install gcc-arm-linux-gnueabihf
-          rustup target add armv7-unknown-linux-gnueabihf
 
       - name: Build binary
         run: |

rust-toolchain.toml

@@ -0,0 +1,4 @@
+[toolchain]
+channel = "1.53"
+components = ["clippy"]
+targets = ["armv7-unknown-linux-gnueabihf"]