Disable some unused unstable features

1 files changed, 1 insertions, 1 deletions

diff --git a/dhall/src/tests.rs b/dhall/src/tests.rs
index 15bc97a..d269523 100644
--- a/dhall/src/tests.rs
+++ b/dhall/src/tests.rs
@@ -204,7 +204,7 @@ pub fn run_test(
             match feature {
                 Parser => {
                     let err = parse_file_str(&file_path).unwrap_err();
-                    match err {
+                    match &err {
                         Error::Parse(_) => {}
                         Error::IO(e)
                             if e.kind() == std::io::ErrorKind::InvalidData => {}