Index: clircle/src/clircle_unix.rs
===================================================================
--- clircle.orig/src/clircle_unix.rs
+++ clircle/src/clircle_unix.rs
@@ -169,8 +169,9 @@ mod tests {
         let ident = unsafe { Identifier::try_from_raw_fd(fd.as_raw_fd(), true) }
             .expect("failed to create identifier");
         drop(ident);
+        let fd = fd.into_raw_fd();
         #[cfg(feature = "test-close-again")]
-        close(fd.into_raw_fd())
+        close(fd)
             .expect_err("the fd should have already been closed by dropping the identifier");
     }