diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index d7ecbb5..12c5913 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -18,6 +18,6 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Build
-      run: cargo +nightly build --verbose
+      run: cargo build --verbose
     - name: Run tests
-      run: cargo +nightly test --verbose
+      run: cargo test --verbose
diff --git a/src/main.rs b/src/main.rs
index 02d1a16..5e14e18 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,12 +1,6 @@
 // TODO(#3): Define and Write documentation for the CMBR Standard.
 // TODO(#6): Seperate the cli and libcmbr
 
-#![feature(
-    panic_payload_as_str,
-    error_generic_member_access,
-    stmt_expr_attributes
-)]
-
 mod eval_args;
 mod pgn;
 mod tests;
@@ -117,15 +111,15 @@ fn main() {
     panic::set_hook(Box::new(|panic_info| {
         if let Some(location) = panic_info.location() {
             println!(
-                "panic occurred in file '{}' at line {}. {}",
+                "panic occurred in file '{}' at line {}. {:?}",
                 location.file(),
                 location.line(),
-                panic_info.payload_as_str().unwrap()
+                panic_info.payload()
             );
         } else {
             println!(
-                "panic occurred but can't get location information...: {}",
-                panic_info.payload_as_str().unwrap()
+                "panic occurred but can't get location information...: {:?}",
+                panic_info.payload()
             );
         }
     }));
diff --git a/src/pgn/mod.rs b/src/pgn/mod.rs
index 5bd442b..cdc8f09 100644
--- a/src/pgn/mod.rs
+++ b/src/pgn/mod.rs
@@ -169,7 +169,6 @@ pub fn parse_pgn(input_filename: &str) -> Result<Vec<PgnGame>, Box<dyn Error + '
             game_index += 1;
             vec_games.insert(game_index, PgnGame::default());
 
-            #[allow(unused_assignments)]
             defer = false;
         }
     }