Fix clippy warnings

Author: youknowone

common/src/str.rs

@@ -245,10 +245,10 @@ pub mod levenshtein {
         if a == b {
             return 0;
         }
-        if (b'A'..=b'Z').contains(&a) {
+        if a.is_ascii_uppercase() {
             a += b'a' - b'A';
         }
-        if (b'A'..=b'Z').contains(&b) {
+        if b.is_ascii_uppercase() {
             b += b'a' - b'A';
         }
         if a == b {

rust-toolchain.toml

@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.67.1"
+channel = "stable"

vm/src/stdlib/io.rs

@@ -1879,22 +1879,16 @@ mod _io {
         write_through: bool,
     }
 
-    #[derive(Debug, Copy, Clone)]
+    #[derive(Debug, Copy, Clone, Default)]
     enum Newlines {
+        #[default]
         Universal,
         Passthrough,
         Lf,
         Cr,
         Crlf,
     }
 
-    impl Default for Newlines {
-        #[inline]
-        fn default() -> Self {
-            Newlines::Universal
-        }
-    }
-
     impl Newlines {
         /// returns position where the new line starts if found, otherwise position at which to
         /// continue the search after more is read into the buffer
@@ -2054,8 +2048,9 @@ mod _io {
         data: PendingWritesData,
     }
 
-    #[derive(Debug)]
+    #[derive(Debug, Default)]
     enum PendingWritesData {
+        #[default]
         None,
         One(PendingWrite),
         Many(Vec<PendingWrite>),
@@ -2076,12 +2071,6 @@ mod _io {
         }
     }
 
-    impl Default for PendingWritesData {
-        fn default() -> Self {
-            PendingWritesData::None
-        }
-    }
-
     impl PendingWrites {
         fn push(&mut self, write: PendingWrite) {
             self.num_bytes += write.as_bytes().len();