Add back our changes

Author: jonhoo

.github/workflows/check.yml

@@ -89,7 +89,7 @@ jobs:
     # https://docs.github.com/en/actions/learn-github-actions/contexts#context-availability
     strategy:
       matrix:
-        msrv: [1.56.1] # 2021 edition requires 1.56
+        msrv: [1.40.0]
     name: ubuntu / ${{ matrix.msrv }}
     steps:
       - uses: actions/checkout@v3

.github/workflows/coverage.yml

@@ -0,0 +1,20 @@
+on:
+  push:
+    branches: [main]
+  pull_request:
+name: coverage
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    container:
+      image: xd009642/tarpaulin:develop-nightly
+      options: --security-opt seccomp=unconfined
+    steps:
+      - uses: actions/checkout@v2
+      - name: Generate code coverage
+        run: |
+          cargo +nightly tarpaulin --verbose --all-features --workspace --timeout 120 --run-types Doctests --run-types Tests --out Xml
+      - name: Upload to codecov.io
+        uses: codecov/codecov-action@v2
+        with:
+          fail_ci_if_error: true

.github/workflows/nostd.yml

@@ -82,5 +82,5 @@ jobs:
           command: test
           args: --release --test loom
         env:
-          LOOM_MAX_PREEMPTIONS: 2
+          LOOM_MAX_PREEMPTIONS: 3
           RUSTFLAGS: "--cfg loom"

.github/workflows/safety.yml

@@ -85,29 +85,4 @@ jobs:
         with:
           command: test
           args: --locked --all-features --all-targets
-  coverage:
-    runs-on: ubuntu-latest
-    name: ubuntu / stable / coverage
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          submodules: true
-      - name: Install stable
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          components: llvm-tools-preview
-      - name: cargo install cargo-llvm-cov
-        uses: taiki-e/install-action@cargo-llvm-cov
-      - name: cargo generate-lockfile
-        if: hashFiles('Cargo.lock') == ''
-        uses: actions-rs/cargo@v1
-        with:
-          command: generate-lockfile
-      - name: cargo llvm-cov
-        run: cargo llvm-cov --locked --all-features --lcov --output-path lcov.info
-      - name: Upload to codecov.io
-        uses: codecov/codecov-action@v2
-        with:
-          fail_ci_if_error: true
+  # continue using our own coverage.yml for now to get doctest checking