fix rust bindings build on windows (#1584)

Refine rust bindings.

.github/workflows/Crate-publishing.yml

@@ -25,22 +25,22 @@ jobs:
       fail-fast: false
       matrix:
         config:
-          - { 
+          - {
               os: windows-2019,
               arch: x64,
               name: 'Windows x86_64'
             }
-          - { 
+          - {
               os: windows-2019,
               arch: x86,
               name: 'Windows x86'
             }
-          - { 
+          - {
               os: ubuntu-latest,
               arch: x64,
               name: 'Ubuntu x86_64'
             }
-          - { 
+          - {
              os: macos-latest,
              arch: x64,
              name: 'macOS x86_64'
@@ -69,15 +69,13 @@ jobs:
 
     - name: '🚧 Cargo test'
       if: "!startsWith(github.ref, 'refs/tags')"
-      env:
-        UNICORN_LOCAL: uc
       run: |
-        cd bindings/rust && cargo test
-    
+        cargo test
+
     - name: '📦 Cargo Publish'
       if: startsWith(github.ref, 'refs/tags') && contains(matrix.config.os, 'ubuntu')
       env:
         TOKEN: ${{ secrets.cratesio_token }}
         UNICORN_VERSION: dev
       run: |
-        cd bindings/rust && cargo login $TOKEN && cargo test && cargo publish
+        cargo login $TOKEN && cargo test && cargo publish