Fix windows compilation error.

.github/workflows/rust.yml

@@ -75,12 +75,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest]
+        os: [ubuntu-latest, windows-latest]
         rust: [stable, nightly]
     steps:
       - name: Setup | Checkout
         uses: actions/checkout@v2
-        
+
       - name: Setup | Rust
         uses: actions-rs/toolchain@v1
         with:
@@ -90,4 +90,4 @@ jobs:
 
       # Run the ignored tests that expect the above setup
       - name: Build | Test
-        run: cargo test --workspace --all-features -- -Z unstable-options --include-ignored
+        run: cargo test --workspace --all-features -- -Z unstable-options --include-ignored

src/finder.rs

@@ -158,7 +158,7 @@ impl Finder {
                     .map(|pathext| {
                         pathext.split(';')
                             .filter_map(|s| {
-                                if s.as_bytes().first() == Some(b'.') {
+                                if s.as_bytes().first() == Some(&b'.') {
                                     Some(s.to_owned())
                                 } else {
                                     // Invalid segment; just ignore it.