commit lockfile; update CI test to match

.github/workflows/main.yml

@@ -4,45 +4,30 @@ on: [push]
 
 jobs:
   test_msrv:
-    name: test on MSRV
+    name: build on MSRV
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/[email protected]
-    - uses: actions-rs/[email protected]
-      with:
-        # When toolchain is not specified, it uses rust-toolchain, which is the MSRV
-        override: true
-    - uses: actions-rs/[email protected]
-      with:
-        command: test
+    - uses: actions/[email protected]
+    - uses: dtolnay/[email protected]
+    # Don't use --all-features because `frost` has a higher MSRV and it's non-default.
+    # Also don't run tests because some dev-dependencies have higher MSRVs.
+    - run: cargo build
   test_nightly:
     name: test on nightly
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/[email protected]
-    # Because we use nightly features for building docs,
-    # using --all-features will fail without nightly toolchain.
-    - uses: actions-rs/[email protected]
-      with:
-        toolchain: nightly
-        override: true
-    - uses: actions-rs/[email protected]
-      with:
-        command: test
-        args: --all-features
+    - uses: actions/[email protected]
+    - uses: dtolnay/rust-toolchain@nightly
+    # Update dependencies since we commit the lockfile
+    - run: cargo update --verbose
+    - run: cargo test --all-features
   build_no_std:
     name: build with no_std
     runs-on: ubuntu-latest
     steps:
     - uses: actions/[email protected]
-    - uses: actions-rs/toolchain@v1.0.7
+    - uses: dtolnay/rust-toolchain@master
       with:
         toolchain: stable
-        override: true
-        # This does not support std, so we use to test if no_std works
-        target: thumbv6m-none-eabi
-    - uses: actions-rs/[email protected]
-      with:
-        command: build
-        # Disables std feature
-        args: --no-default-features --target thumbv6m-none-eabi
+        targets: thumbv6m-none-eabi
+    - run: cargo build --no-default-features --target thumbv6m-none-eabi

.gitignore

@@ -1,4 +1,3 @@
 /target
 **/*.rs.bk
-Cargo.lock
 *~