Versions of c-s-c after 0.37 require Rust 1.81+ (#93)

* update rust versions

* Only test oldest supported version

* debug cache

* List caches

* fix grep

* unnecessary quotes

* remove debug

.github/workflows/test-action.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'windows-latest', 'macos-latest']
-        toolchain: ['1.80', 'stable', 'beta']
+        toolchain: ["1.81", "stable", "beta"]
         experimental: [false]
         include:
           - os: 'ubuntu-latest'

.github/workflows/test-cache.yml

@@ -33,7 +33,7 @@ jobs:
           prefix-key: testprefix
       - name: Check if the cache directory exists
         run: |
-          if ! grep -q "ref_slice-1.2.1/src/lib.rs" "semver-checks/target/semver-checks/cache/registry-ref_slice-1_2_1.json"; then
+          if ! grep -q "ref_slice-1.2.1/src/lib.rs" semver-checks/target/semver-checks/cache/ref_slice-1_2_1*.json; then
             echo "Non-existent or invalid cache file!"
             exit 1
           fi
@@ -83,7 +83,7 @@ jobs:
           prefix-key: testprefix
       - name: Check if the cache directory exists
         run: |
-          if ! grep -q "ref_slice-1.2.1/src/lib.rs" "semver-checks/target/semver-checks/cache/registry-ref_slice-1_2_1.json"; then
+          if ! grep -q "ref_slice-1.2.1/src/lib.rs" semver-checks/target/semver-checks/cache/ref_slice-1_2_1*.json; then
             echo "Non-existent or invalid cache file!"
             exit 1
           fi