Move the pin to Rust 1.98

Cargo.toml

@@ -2,7 +2,7 @@
 name = "zudb-node"
 version = "0.0.1"
 edition = "2024"
-rust-version = "1.97"
+rust-version = "1.98"
 license = "Apache-2.0"
 repository = "https://github.com/tamnd/zu-node"
 authors = ["Tam Nguyen <tamnd87@gmail.com>"]

rust-toolchain.toml

@@ -3,5 +3,5 @@
 # a different build of the same code. Held to the version in
 # tamnd/zu's toolchains.toml.
 [toolchain]
-channel = "1.97.1"
+channel = "1.98.0"
 components = ["rustfmt", "clippy"]

src/frame.rs

@@ -251,18 +251,33 @@ impl Bytes {
     /// what the words mean is the layout's business and does not change
     /// on the way.
     fn extend(&mut self, raw: &[u8]) {
+        // `as_chunks` hands back arrays rather than slices, so the width
+        // is in the type and the conversion that used to sit in the
+        // middle of each line is gone along with the panic it carried.
+        // A remainder is bytes that are not a whole element, which is a
+        // caller handing over something that is not this column, and
+        // dropping it is what `chunks_exact` did too.
         match self {
             Bytes::Eight(v) => v.extend(
-                raw.chunks_exact(8)
-                    .map(|word| u64::from_ne_bytes(word.try_into().expect("eight bytes"))),
+                raw.as_chunks::<8>()
+                    .0
+                    .iter()
+                    .copied()
+                    .map(u64::from_ne_bytes),
             ),
             Bytes::Four(v) => v.extend(
-                raw.chunks_exact(4)
-                    .map(|word| u32::from_ne_bytes(word.try_into().expect("four bytes"))),
+                raw.as_chunks::<4>()
+                    .0
+                    .iter()
+                    .copied()
+                    .map(u32::from_ne_bytes),
             ),
             Bytes::Two(v) => v.extend(
-                raw.chunks_exact(2)
-                    .map(|word| u16::from_ne_bytes(word.try_into().expect("two bytes"))),
+                raw.as_chunks::<2>()
+                    .0
+                    .iter()
+                    .copied()
+                    .map(u16::from_ne_bytes),
             ),
             Bytes::One(v) => v.extend_from_slice(raw),
             Bytes::Offsets(_) => {}

src/load.rs

@@ -495,9 +495,12 @@ fn pairs(env: &Env, options: &Object<'_>, rows: u64) -> Result<Vec<(u32, u32)>>
                 flat.len()
             )));
         }
+        // A pair is a pair in the type, so the two indexes below are not
+        // indexes any more and the odd tail `as_chunks` would hand back
+        // is already refused above.
         let mut pairs = Vec::with_capacity(flat.len() / 2);
-        for (at, edge) in flat.chunks_exact(2).enumerate() {
-            pairs.push((within(at, edge[0])?, within(at, edge[1])?));
+        for (at, &[from, to]) in flat.as_chunks::<2>().0.iter().enumerate() {
+            pairs.push((within(at, from)?, within(at, to)?));
         }
         return Ok(pairs);
     }