Remove srs cache diagnostic

.github/actions/setup-srs/install.sh

@@ -57,4 +57,6 @@ toolchain_bin="$(dirname "$cargo_wrapper")"
     echo "RUSTUP_TOOLCHAIN=${toolchain}"
     echo "SRS_CARGO_ARTIFACT_CACHE_MAX_SIZE=4GiB"
 } >> "$GITHUB_ENV"
+# Rustup injects the toolchain library tree into LD_LIBRARY_PATH on Linux,
+# which disables srs artifact-cache admission due to its nested shared objects.
 echo "$toolchain_bin" >> "$GITHUB_PATH"

.github/workflows/check-generated-files.yml

@@ -37,26 +37,6 @@ jobs:
         uses: ./.github/actions/setup-srs
         with:
           artifact-cache-scope: github-linux-dev
-      - name: "Diagnose srs artifact cache"
-        env:
-          CARGO_LOG: cargo::core::compiler=debug
-          CARGO_TARGET_DIR: ${{ runner.temp }}/srs-artifact-cache-probe
-        run: |
-          echo "Cargo: $(command -v cargo)"
-          test "$(command -v cargo)" = "$CARGO"
-          echo "Loader environment:"
-          env | grep -E '^(GLIBC_TUNABLES|LD_|DYLD_)=' || true
-          echo "Restored srs cache:"
-          du -sh ~/.cargo/srs-artifact-cache-v2 || true
-          find ~/.cargo/srs-artifact-cache-v2 -type f | wc -l
-          cargo build --package uv-static --lib \
-            > "$RUNNER_TEMP/srs-artifact-cache-probe.log" 2>&1
-          grep -E 'artifact cache|Compiling|Finished' \
-            "$RUNNER_TEMP/srs-artifact-cache-probe.log"
-          grep -q 'stored artifact cache entry' \
-            "$RUNNER_TEMP/srs-artifact-cache-probe.log"
-          test -d ~/.cargo/srs-artifact-cache-v2
-          test "$(find ~/.cargo/srs-artifact-cache-v2 -type f | wc -l)" -gt 0
       - name: "Generate all"
         run: cargo dev generate-all --mode dry-run
       - name: "Check sysconfig mappings"