Switch to GitHub Actions; MSRV 1.41+

The MSRV bump is necessary to check in a merge-friendly Cargo.lock
(which is helpful for caching).

We'll want to do this bump anyway soon for `generic-array` v0.14. See:

<RustCrypto/traits#95>

.github/workflows/elliptic-curve-crate.yml

@@ -0,0 +1,53 @@
+name: elliptic-curve crate
+
+on:
+  pull_request:
+    paths:
+      - "elliptic-curve-crate/**"
+      - "Cargo.*"
+  push:
+    branches: master
+    paths:
+      - "elliptic-curve-crate/**"
+      - "Cargo.*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+        target:
+          - thumbv7em-none-eabi
+          - wasm32-unknown-unknown
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.target }}
+          override: true
+      - working-directory: elliptic-curve-crate
+        run: cargo build --no-default-features --release --target ${{ matrix.target }}
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: ${{ matrix.rust }}
+    - run: |
+        cargo check --all-features
+        cargo test --no-default-features
+        cargo test
+        cargo test --all-features
+      working-directory: elliptic-curve-crate

.github/workflows/k256.yml

@@ -0,0 +1,55 @@
+name: k256
+
+on:
+  pull_request:
+    paths:
+      - "elliptic-curve-crate/**"
+      - "k256/**"
+      - "Cargo.*"
+  push:
+    branches: master
+    paths:
+      - "elliptic-curve-crate/**"
+      - "k256/**"
+      - "Cargo.*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+        target:
+          - thumbv7em-none-eabi
+          - wasm32-unknown-unknown
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.target }}
+          override: true
+      - working-directory: k256
+        run: cargo build --no-default-features --release --target ${{ matrix.target }}
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: ${{ matrix.rust }}
+    - run: |
+        cargo check --all-features
+        cargo test --no-default-features
+        cargo test
+        cargo test --all-features
+      working-directory: k256

.github/workflows/p256.yml

@@ -0,0 +1,55 @@
+name: p256
+
+on:
+  pull_request:
+    paths:
+      - "elliptic-curve-crate/**"
+      - "p256/**"
+      - "Cargo.*"
+  push:
+    branches: master
+    paths:
+      - "elliptic-curve-crate/**"
+      - "p256/**"
+      - "Cargo.*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+        target:
+          - thumbv7em-none-eabi
+          - wasm32-unknown-unknown
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.target }}
+          override: true
+      - working-directory: p256
+        run: cargo build --no-default-features --release --target ${{ matrix.target }}
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: ${{ matrix.rust }}
+    - run: |
+        cargo check --all-features
+        cargo test --no-default-features
+        cargo test
+        cargo test --all-features
+      working-directory: p256

.github/workflows/p384.yml

@@ -0,0 +1,55 @@
+name: p384
+
+on:
+  pull_request:
+    paths:
+      - "elliptic-curve-crate/**"
+      - "p384/**"
+      - "Cargo.*"
+  push:
+    branches: master
+    paths:
+      - "elliptic-curve-crate/**"
+      - "p384/**"
+      - "Cargo.*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+        target:
+          - thumbv7em-none-eabi
+          - wasm32-unknown-unknown
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.target }}
+          override: true
+      - working-directory: p384
+        run: cargo build --no-default-features --release --target ${{ matrix.target }}
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: ${{ matrix.rust }}
+    - run: |
+        cargo check --all-features
+        cargo test --no-default-features
+        cargo test
+        cargo test --all-features
+      working-directory: p384

.github/workflows/p521.yml

@@ -0,0 +1,55 @@
+name: p521
+
+on:
+  pull_request:
+    paths:
+      - "elliptic-curve-crate/**"
+      - "p521/**"
+      - "Cargo.*"
+  push:
+    branches: master
+    paths:
+      - "elliptic-curve-crate/**"
+      - "p521/**"
+      - "Cargo.*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+        target:
+          - thumbv7em-none-eabi
+          - wasm32-unknown-unknown
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.target }}
+          override: true
+      - working-directory: p521
+        run: cargo build --no-default-features --release --target ${{ matrix.target }}
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.41.0 # MSRV
+          - stable
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: ${{ matrix.rust }}
+    - run: |
+        cargo check --all-features
+        cargo test --no-default-features
+        cargo test
+        cargo test --all-features
+      working-directory: p521

.github/workflows/security-audit.yml

@@ -0,0 +1,24 @@
+name: Security Audit
+on:
+  pull_request:
+    paths: Cargo.lock
+  push:
+    branches: develop
+    paths: Cargo.lock
+  schedule:
+    - cron: '0 0 * * *'
+
+jobs:
+  security_audit:
+    name: Security Audit
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Cache cargo bin
+        uses: actions/cache@v1
+        with:
+          path: ~/.cargo/bin
+          key: ${{ runner.os }}-cargo-audit-v0.12.0
+      - uses: actions-rs/audit-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/workspace.yml

@@ -0,0 +1,40 @@
+name: Workspace
+
+on:
+  pull_request:
+    paths-ignore:
+      - README.md
+  push:
+    branches: master
+    paths-ignore:
+      - README.md
+
+jobs:
+  clippy:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: 1.41.0
+        components: clippy
+    - run: cargo clippy --all --all-features -- -D warnings
+  rustfmt:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v1
+
+      - name: Install stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          components: rustfmt
+
+      - name: Run cargo fmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check

.gitignore

@@ -1,3 +1,2 @@
-Cargo.lock
 target
 *.sw*