minion: update ci to use caching

.github/workflows/minion-tests.yml

@@ -1,4 +1,5 @@
 # https://doc.rust-lang.org/cargo/guide/continuous-integration.html
+# https://ectobit.com/blog/speed-up-github-actions-rust-pipelines/
 name: 'solvers/minion'
 on:
  push:
@@ -16,32 +17,70 @@ jobs:
  steps:
  - uses: actions/checkout@v2
 
+ - name: Set up cache
+ uses: actions/cache@v3
+ with:
+ path: |
+ ~/.cargo/bin/
+ ~/.cargo/registry/index/
+ ~/.cargo/registry/cache/
+ ~/.cargo/git/db/
+ target/ 
+ solvers/minion/vendor
+ key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+ restore-keys: ${{ runner.os }}-cargo-
+
  - working-directory: ./solvers/minion
  run: rustup update stable && rustup default stable
 
  - working-directory: ./solvers/minion
- run: cargo build --verbose
+ run: cargo build -vv
 
  mac:
  name: 'solvers/minion: Mac Build'
  runs-on: macos-latest
  steps:
  - uses: actions/checkout@v2
 
+ - name: Set up cache
+ uses: actions/cache@v3
+ with:
+ path: |
+ ~/.cargo/bin/
+ ~/.cargo/registry/index/
+ ~/.cargo/registry/cache/
+ ~/.cargo/git/db/
+ target/ 
+ solvers/minion/vendor
+ key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+ restore-keys: ${{ runner.os }}-cargo-
+
  - working-directory: ./solvers/minion
  run: rustup update stable && rustup default stable
 
  - working-directory: ./solvers/minion 
  run: rustup target add aarch64-apple-darwin
 
  - working-directory: ./solvers/minion
- run: cargo build --verbose
+ run: cargo build -vv
 
  tests:
  name: 'solvers/minion: Tests'
  runs-on: ubuntu-latest
  steps:
  - uses: actions/checkout@v2
+ - name: Set up cache
+ uses: actions/cache@v3
+ with:
+ path: |
+ ~/.cargo/bin/
+ ~/.cargo/registry/index/
+ ~/.cargo/registry/cache/
+ ~/.cargo/git/db/
+ target/ 
+ solvers/minion/vendor
+ key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+ restore-keys: ${{ runner.os }}-cargo-
 
  - working-directory: ./solvers/minion
  run: rustup update stable && rustup default stable