Replace unmaintained actions-rs/toolchain action in CI workflows (rustwasm#314)

Basically all of the `actions-rs/*` actions are unmaintained. See
<actions-rs/toolchain#216> for more
information. Due to their age they generate several warnings in
CI runs.

To get rid of some of those warnings the occurrences of
`actions-rs/toolchain` are replaced by `dtolnay/rust-toolchain`.

Author: striezel

.github/workflows/lint-fmt.yml

@@ -11,10 +11,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
-          profile: minimal
           components: rustfmt
 
       - uses: actions/cache@v3
@@ -36,10 +35,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
-          profile: minimal
           components: clippy
           target: wasm32-unknown-unknown
 

.github/workflows/tests.yml

@@ -11,11 +11,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
-          override: true
-          profile: minimal
 
       - uses: actions/cache@v3
         with:
@@ -36,12 +34,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
           target: wasm32-unknown-unknown
-          override: true
-          profile: minimal
 
       - name: Install wasm-pack
         run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
@@ -78,12 +74,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
           target: wasm32-unknown-unknown
-          override: true
-          profile: minimal
 
       - name: Install wasm-pack
         run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
@@ -115,12 +109,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
           target: wasm32-unknown-unknown
-          override: true
-          profile: minimal
 
       - name: Install wasm-pack
         run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
@@ -170,11 +162,9 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
-          profile: minimal
-          override: true
           target: wasm32-unknown-unknown
 
       - name: Install wasm-pack
@@ -200,11 +190,9 @@ jobs:
           cd crates/net
           wasm-pack test --chrome --firefox --headless --all-features
 
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
-          profile: minimal
-          override: true
           target: wasm32-unknown-unknown
 
       - name: Run native tests