CI: pin repo toolchain to 1.93.0

Author: rockbmb

.github/workflows/build-release-binaries.yaml

@@ -41,13 +41,6 @@ jobs:
           toolchain: ${{ env.TOOLCHAIN_STABLE }}
           override: true
 
-      - name: Override stable toolchain with ${{ env.TOOLCHAIN_STABLE }}
-        run: |
-          rustup default ${{ env.TOOLCHAIN_STABLE }}
-          rustup toolchain uninstall stable || true
-          TOOLCHAIN_DIR=$(dirname "$(dirname "$(rustup which cargo --toolchain ${{ env.TOOLCHAIN_STABLE }})")")
-          rustup toolchain link stable "$TOOLCHAIN_DIR"
-
       - name: Add apple target
         if: matrix.platform.os == 'macos-latest'
         run: rustup target add aarch64-apple-darwin

.github/workflows/rust-checks.yaml

@@ -95,12 +95,6 @@ jobs:
         with:
           toolchain: ${{ env.TOOLCHAIN_STABLE }}
           targets: wasm32-unknown-unknown
-      - name: Override stable toolchain with ${{ env.TOOLCHAIN_STABLE }}
-        run: |
-          rustup default ${{ env.TOOLCHAIN_STABLE }}
-          rustup toolchain uninstall stable || true
-          TOOLCHAIN_DIR=$(dirname "$(dirname "$(rustup which cargo --toolchain ${{ env.TOOLCHAIN_STABLE }})")")
-          rustup toolchain link stable "$TOOLCHAIN_DIR"
       - uses: Swatinem/rust-cache@v2
       - name: Install Protoc
         uses: arduino/setup-protoc@v1

.github/workflows/rust-docs.yaml

@@ -34,13 +34,6 @@ jobs:
           targets: wasm32-unknown-unknown
           components: rust-src
 
-      - name: Override stable toolchain with ${{ env.TOOLCHAIN_STABLE }}
-        run: |
-          rustup default ${{ env.TOOLCHAIN_STABLE }}
-          rustup toolchain uninstall stable || true
-          TOOLCHAIN_DIR=$(dirname "$(dirname "$(rustup which cargo --toolchain ${{ env.TOOLCHAIN_STABLE }})")")
-          rustup toolchain link stable "$TOOLCHAIN_DIR"
-        
       - name: Check if the README is up to date.
         run: |
           cargo install cargo-rdme --locked -q

rust-toolchain.toml

@@ -1,5 +1,5 @@
 [toolchain]
-channel = "stable"
+channel = "1.93.0"
 components = [
 	"rust-src",
 	"rustc-dev",