Fix warnings about "async_std".

sunfishcode · sunfishcode · commit 6733f362a72e · 2024-11-21T17:33:17.000-08:00
diff --git a/cap-fs-ext/Cargo.toml b/cap-fs-ext/Cargo.toml
@@ -40,3 +40,9 @@ features = [
 
 [dev-dependencies]
 cap-tempfile = { path = "../cap-tempfile" }
+
+[lints.rust.unexpected_cfgs]
+level = "warn"
+check-cfg = [
+    'cfg(feature, values("async_std"))'
+]
