chore: upgrade to rust 1.80 (#1553)

rust-toolchain.toml

@@ -1,5 +1,5 @@
 [toolchain]
-channel = "1.79.0"
+channel = "1.80.0"
 components = ["rustfmt", "clippy"]
 targets = [
     "x86_64-apple-darwin",

src/fast_api.rs

@@ -235,6 +235,8 @@ pub struct FastApiTypedArray<T: Default> {
   data: *mut T,
 }
 
+// FastApiOneByteString is an alias for SeqOneByteString and the type is widely used in deno_core.
+#[allow(dead_code)]
 #[repr(C)]
 pub struct FastApiOneByteString {
   data: *const u8,

tests/test_api.rs

@@ -5202,6 +5202,7 @@ fn equality_edge_cases() {
 }
 
 #[test]
+#[allow(clippy::mutable_key_type)]
 fn get_hash() {
   use std::collections::HashMap;
   use std::collections::HashSet;