Add CI via Github actions.

.github/workflows/rust.yml

@@ -0,0 +1,131 @@
+name: Rust
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ main, develop ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  test-u32:
+    name: Test u32 backend
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --no-default-features --features "std u32_backend"
+
+  test-u64:
+    name: Test u64 backend
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --no-default-features --features "std u64_backend"
+
+  test-simd:
+    name: Test simd backend (nightly)
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: nightly
+        override: true
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --no-default-features --features "std nightly simd_backend"
+
+  test-defaults-serde:
+    name: Test default feature selection and serde
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --features "serde"
+
+  test-alloc-u32:
+    name: Test no_std+alloc with u32 backend
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --lib --no-default-features --features "alloc u32_backend"
+
+  test-batch-deterministic:
+    name: Test deterministic batch verification
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --features "batch_deterministic"
+
+  msrv:
+    name: Current MSRV is 1.41
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: 1.41
+        override: true
+    - uses: actions-rs/cargo@v1
+      with:
+        command: build
+
+  bench:
+    name: Check that benchmarks compile
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - uses: actions-rs/cargo@v1
+      with:
+        command: bench
+        # This filter selects no benchmarks, so we don't run any, only build them.
+        args: --features "batch" "DONTRUNBENCHMARKS"

Cargo.toml

@@ -30,7 +30,7 @@ rand_core = { version = "0.5", default-features = false, optional = true }
 serde_crate = { package = "serde", version = "1.0", default-features = false, optional = true }
 serde_bytes = { version = "0.11", default-features = false, optional = true }
 sha2 = { version = "0.9", default-features = false }
-zeroize = { version = "1", default-features = false, features = ["zeroize_derive"] }
+zeroize = { version = "~1.3", default-features = false, features = ["zeroize_derive"] }
 
 [dev-dependencies]
 hex = "^0.4"