[CI] Build the Rust extensions on the 5090 pool and seed the cache from main (#33460)

rust/sglang-server/src/fsm.rs

@@ -16,7 +16,6 @@ use crate::error::Error;
 
 // `Failed(Error)` carries the cause for observability even where it isn't read
 // back yet; `EncodeDone` belongs to the deferred Encoder edge.
-#[allow(dead_code)]
 #[derive(Debug, Clone)]
 pub enum RequestState {
     Received,

rust/sglang-server/src/utils/regex.rs

@@ -263,7 +263,6 @@ fn cache_bound(pattern: &str, max_len: usize) {
 /// can pair one pattern's bound with another's, and there is no second route to a
 /// bound that could drift from the validated one.
 pub struct RegexPattern<'a> {
-    #[allow(dead_code)]
     pattern: &'a str,
     max_len: usize,
 }
@@ -310,7 +309,6 @@ impl<'a> RegexPattern<'a> {
         Ok(Self { pattern, max_len })
     }
 
-    #[allow(dead_code)]
     /// The admitted pattern. See the field note on why this is kept.
     #[allow(dead_code)]
     pub fn pattern(&self) -> &str {