From 718acda08c5e70b04b4ddc87337421fdc4cd0cdc Mon Sep 17 00:00:00 2001
From: hanabi1224 <harlowmoo@gmail.com>
Date: Wed, 4 Sep 2024 12:35:08 +0800
Subject: [PATCH] fix warnings

---
 build.rs                      | 10 ++++++++--
 src/lib.rs                    |  1 +
 src/types/annoy_index_impl.rs |  1 -
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/build.rs b/build.rs
index 3d73a14..65d918d 100644
--- a/build.rs
+++ b/build.rs
@@ -2,8 +2,14 @@ use rustc_version::{version_meta, Channel};
 
 fn main() {
     match version_meta().unwrap().channel {
-        Channel::Nightly => println!("cargo:rustc-cfg=nightly"),
-        Channel::Beta => println!("cargo:rustc-cfg=beta"),
+        Channel::Nightly => {
+            println!("cargo::rustc-check-cfg=cfg(nightly)");
+            println!("cargo:rustc-cfg=nightly");
+        }
+        Channel::Beta => {
+            println!("cargo::rustc-check-cfg=cfg(beta)");
+            println!("cargo:rustc-cfg=beta");
+        }
         _ => {}
     };
 }
diff --git a/src/lib.rs b/src/lib.rs
index 52f3cfd..45a6551 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -14,6 +14,7 @@ pub use types::*;
 pub mod wasm_exports;
 
 #[cfg(test)]
+#[cfg(nightly)]
 mod tests {
     pub trait RoundTo<T> {
         fn round_to(&self, n: usize) -> T;
diff --git a/src/types/annoy_index_impl.rs b/src/types/annoy_index_impl.rs
index aa5a0cf..a9d8076 100644
--- a/src/types/annoy_index_impl.rs
+++ b/src/types/annoy_index_impl.rs
@@ -4,7 +4,6 @@ use crate::internals::storage_ext::*;
 use crate::types::node::*;
 use crate::Storage;
 use std::error::Error;
-use std::vec::Vec;
 
 impl AnnoyIndex {
     #[cfg(not(target_arch = "wasm32"))]