Undo extra changes.

.github/workflows/build.yml

@@ -22,7 +22,7 @@ jobs:
           # `i686-unknown-linux-gnu` so we just need to check this page for a
           # compatible nightly:
           # https://rust-lang.github.io/rustup-components-history/mips64-unknown-linux-gnuabi64.html
-          toolchain: nightly-2024-09-17
+          toolchain: nightly-2023-04-25
           override: true
           components: rustfmt, miri
       - name: Lint

src/serde/de.rs

@@ -119,19 +119,19 @@ macro_rules! specify {
                 #[cold]
                 fn cold<'de>(decoder: &mut SerdeDecoder<'de>, input: &mut &'de [u8]) -> Result<()> {
                     let &mut SerdeDecoder::Unspecified { length } = decoder else {
-                        type_changed!()
-                    };
+                            type_changed!()
+                        };
                     *decoder = SerdeDecoder::$variant(Default::default());
                     decoder.populate(input, length)
                 }
                 cold(&mut *$self.decoder, &mut *$self.input)?;
             }
         }
         let SerdeDecoder::$variant(d) = &mut *$self.decoder else {
-            // Safety: `cold` gets called when decoder isn't the correct decoder. `cold` either
-            // errors or sets lazy to the correct decoder.
-            unsafe { core::hint::unreachable_unchecked() };
-        };
+                // Safety: `cold` gets called when decoder isn't the correct decoder. `cold` either
+                // errors or sets lazy to the correct decoder.
+                unsafe { core::hint::unreachable_unchecked() };
+            };
         d
     }};
 }