use experimental feature

Cargo.toml

@@ -22,3 +22,6 @@ criterion-plot = "0.5.0"
 [[bench]]
 name = "bench"
 harness = false
+
+[features]
+experimental = []

src/experimental.rs

@@ -144,7 +144,7 @@ mod tests {
 
     #[test]
     fn empty() {
-        let p = Pool::<()>::from_iter(Vec::new());
+        let p: Pool<()> = std::iter::empty().collect();
         assert_eq!(p.len(), 0);
         assert_eq!(p.capacity(), 0);
         assert_eq!(p.bitset.ints.len(), 1);
@@ -154,7 +154,7 @@ mod tests {
 
     #[test]
     fn pull_set_return() {
-        let p = Pool::from_iter(0..100usize);
+        let p: Pool<usize> = (0..100usize).collect();
         assert_eq!(p.len(), 100);
         assert_eq!(p.capacity(), 100);
         assert_eq!(p.bitset.ints.len(), 2);

src/lib.rs

@@ -81,6 +81,7 @@ use std::mem::{forget, ManuallyDrop};
 use std::ops::{Deref, DerefMut};
 use std::sync::Arc;
 
+#[cfg(feature = "experimental")]
 pub mod experimental;
 
 pub type Stack<T> = Vec<T>;