Replace unmaintained actions-rs/toolchain with dtolnay/rust-toolchain

.github/workflows/ci.yml

@@ -25,11 +25,7 @@ jobs:
 
       - name: Install rust stable toolchain
         if: steps.xtask-cache.outputs.cache-hit != 'true'
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
+        uses: dtolnay/rust-toolchain@stable
 
       - name: Build
         if: steps.xtask-cache.outputs.cache-hit != 'true'
@@ -47,11 +43,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Install rust nightly toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: nightly
-          override: true
+        uses: dtolnay/rust-toolchain@nightly
 
       - uses: Swatinem/rust-cache@v2
 
@@ -99,18 +91,9 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Install rust 1.64 toolchain
-        uses: actions-rs/toolchain@v1
+        uses: dtolnay/rust-toolchain@master
         with:
-          profile: minimal
-          toolchain: "1.64"
-
-      # Used to compile xtask
-      - name: Install rust stable toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
+          toolchain: 1.64
 
       - uses: Swatinem/rust-cache@v2
         with:
@@ -158,11 +141,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Install rust stable toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
+        uses: dtolnay/rust-toolchain@stable
 
       - uses: Swatinem/rust-cache@v2
 
@@ -205,11 +184,8 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Install rust nightly toolchain
-        uses: actions-rs/toolchain@v1
+        uses: dtolnay/rust-toolchain@nightly
         with:
-          profile: minimal
-          toolchain: nightly
-          override: true
           components: ${{ matrix.components }}
 
       - uses: Swatinem/rust-cache@v2
@@ -232,12 +208,8 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Install nightly rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
         # Nightly needed for use of unstable options
-          toolchain: nightly
-          override: true
+        uses: dtolnay/rust-toolchain@nightly
 
       - uses: Swatinem/rust-cache@v2