diff --git a/src/boxed.rs b/src/boxed.rs
index 062f041..39b99d7 100644
--- a/src/boxed.rs
+++ b/src/boxed.rs
@@ -182,7 +182,7 @@ impl<T, A: AllocRef> Box<T, A> {
     /// # #[allow(unused_variables)]
     /// let five = Box::new_in(5, Global);
     /// ```
-    #[allow(clippy::inline_always)]
+    #[allow(clippy::inline_always, clippy::needless_pass_by_value)]
     #[inline(always)]
     pub fn new_in(x: T, a: A) -> Self {
         unsafe { Self::try_new_in(x, a).unwrap_unchecked() }
@@ -201,6 +201,7 @@ impl<T, A: AllocRef> Box<T, A> {
     /// let five = Box::try_new_in(5, Global)?;
     /// # Ok::<_, alloc_wg::alloc::AllocErr>(())
     /// ```
+    #[allow(clippy::needless_pass_by_value)]
     pub fn try_new_in(x: T, a: A) -> Result<Self, A::Error> {
         let ptr = if let Ok(layout) = NonZeroLayout::new::<T>() {
             let ptr = a.alloc(layout)?.cast::<T>();
@@ -232,7 +233,7 @@ impl<T, A: AllocRef> Box<T, A> {
     ///
     /// assert_eq!(*five, 5)
     /// ```
-    #[allow(clippy::inline_always)]
+    #[allow(clippy::inline_always, clippy::needless_pass_by_value)]
     #[inline(always)]
     pub fn new_uninit_in(a: A) -> Box<mem::MaybeUninit<T>, A> {
         unsafe { Self::try_new_uninit_in(a).unwrap_unchecked() }
@@ -257,6 +258,7 @@ impl<T, A: AllocRef> Box<T, A> {
     /// assert_eq!(*five, 5);
     /// # Ok::<_, alloc_wg::alloc::AllocErr>(())
     /// ```
+    #[allow(clippy::needless_pass_by_value)]
     pub fn try_new_uninit_in(a: A) -> Result<Box<mem::MaybeUninit<T>, A>, A::Error> {
         let ptr = if let Ok(layout) = NonZeroLayout::new::<T>() {
             let ptr: NonNull<mem::MaybeUninit<T>> = a.alloc(layout)?.cast();
@@ -269,7 +271,7 @@ impl<T, A: AllocRef> Box<T, A> {
 
     /// Constructs a new `Pin<Box<T, A>>` with the specified allocator. If `T` does not implement
     /// `Unpin`, then `x` will be pinned in memory and unable to be moved.
-    #[allow(clippy::inline_always)]
+    #[allow(clippy::inline_always, clippy::needless_pass_by_value)]
     #[inline(always)]
     pub fn pin_in(x: T, a: A) -> Pin<Self> {
         unsafe { Self::try_pin_in(x, a).unwrap_unchecked() }
@@ -277,6 +279,7 @@ impl<T, A: AllocRef> Box<T, A> {
 
     /// Constructs a new `Pin<Box<T, A>>` with the specified allocator. If `T` does not implement
     /// `Unpin`, then `x` will be pinned in memory and unable to be moved.
+    #[allow(clippy::needless_pass_by_value)]
     #[inline]
     pub fn try_pin_in(x: T, a: A) -> Result<Pin<Self>, A::Error> {
         Self::try_new_in(x, a).map(Pin::from)
@@ -335,7 +338,7 @@ impl<T, A: AllocRef> Box<[T], A> {
     ///
     /// assert_eq!(*values, [1, 2, 3]);
     /// ```
-    #[allow(clippy::inline_always)]
+    #[allow(clippy::inline_always, clippy::needless_pass_by_value)]
     #[inline(always)]
     pub fn new_uninit_slice_in(len: usize, a: A) -> Box<[mem::MaybeUninit<T>], A> {
         unsafe { Self::try_new_uninit_slice_in(len, a).unwrap_unchecked() }
@@ -363,6 +366,7 @@ impl<T, A: AllocRef> Box<[T], A> {
     /// assert_eq!(*values, [1, 2, 3]);
     /// # Ok::<_, alloc_wg::collections::CollectionAllocErr<Global>>(())
     /// ```
+    #[allow(clippy::needless_pass_by_value)]
     pub fn try_new_uninit_slice_in(
         len: usize,
         a: A,
diff --git a/src/raw_vec.rs b/src/raw_vec.rs
index 56b348a..d1067e8 100644
--- a/src/raw_vec.rs
+++ b/src/raw_vec.rs
@@ -144,6 +144,7 @@ impl<T> RawVec<T> {
 
 impl<T, A: DeallocRef> RawVec<T, A> {
     /// Like `new` but parameterized over the choice of allocator for the returned `RawVec`.
+    #[allow(clippy::needless_pass_by_value)]
     pub fn new_in(a: A) -> Self {
         let capacity = if mem::size_of::<T>() == 0 { !0 } else { 0 };
         Self {
@@ -161,6 +162,7 @@ impl<T, A: DeallocRef> RawVec<T, A> {
     ///
     /// * if the requested capacity exceeds `usize::MAX` bytes.
     /// * on 32-bit platforms if the requested capacity exceeds `isize::MAX` bytes.
+    #[allow(clippy::needless_pass_by_value)]
     pub fn with_capacity_in(capacity: usize, a: A) -> Self
     where
         A: AllocRef,
@@ -181,6 +183,7 @@ impl<T, A: DeallocRef> RawVec<T, A> {
     /// * `CapacityOverflow` if the requested capacity exceeds `usize::MAX` bytes.
     /// * `CapacityOverflow` on 32-bit platforms if the requested capacity exceeds `isize::MAX` bytes.
     /// * `AllocError` on OOM
+    #[allow(clippy::needless_pass_by_value)]
     pub fn try_with_capacity_in(capacity: usize, a: A) -> Result<Self, CollectionAllocErr<A>>
     where
         A: AllocRef,
@@ -196,6 +199,7 @@ impl<T, A: DeallocRef> RawVec<T, A> {
     ///
     /// * if the requested capacity exceeds `usize::MAX` bytes.
     /// * on 32-bit platforms if the requested capacity exceeds `isize::MAX` bytes.
+    #[allow(clippy::needless_pass_by_value)]
     pub fn with_capacity_zeroed_in(capacity: usize, a: A) -> Self
     where
         A: AllocRef,
@@ -216,6 +220,7 @@ impl<T, A: DeallocRef> RawVec<T, A> {
     /// * `CapacityOverflow` if the requested capacity exceeds `usize::MAX` bytes.
     /// * `CapacityOverflow` on 32-bit platforms if the requested capacity exceeds `isize::MAX` bytes.
     /// * `AllocError` on OOM
+    #[allow(clippy::needless_pass_by_value)]
     pub fn try_with_capacity_zeroed_in(capacity: usize, a: A) -> Result<Self, CollectionAllocErr<A>>
     where
         A: AllocRef,
@@ -223,6 +228,7 @@ impl<T, A: DeallocRef> RawVec<T, A> {
         Self::allocate_in(capacity, true, a)
     }
 
+    #[allow(clippy::needless_pass_by_value)]
     fn allocate_in(capacity: usize, zeroed: bool, alloc: A) -> Result<Self, CollectionAllocErr<A>>
     where
         A: AllocRef,
diff --git a/src/string.rs b/src/string.rs
index 980f798..b15b855 100644
--- a/src/string.rs
+++ b/src/string.rs
@@ -566,6 +566,7 @@ impl String {
 
 impl<A: DeallocRef> String<A> {
     /// Like `new` but parameterized over the choice of allocator for the returned `String`.
+    #[allow(clippy::needless_pass_by_value)]
     #[inline]
     pub fn new_in(a: A) -> Self {
         Self {
@@ -577,6 +578,7 @@ impl<A: DeallocRef> String<A> {
     ///
     /// # Panics
     /// Panics if the allocation fails.
+    #[allow(clippy::needless_pass_by_value)]
     #[inline]
     pub fn with_capacity_in(capacity: usize, a: A) -> Self
     where
@@ -588,6 +590,7 @@ impl<A: DeallocRef> String<A> {
     }
 
     /// Like `with_capacity_in` but returns errors instead of panicking.
+    #[allow(clippy::needless_pass_by_value)]
     #[inline]
     pub fn try_with_capacity_in(capacity: usize, a: A) -> Result<Self, CollectionAllocErr<A>>
     where
@@ -602,6 +605,7 @@ impl<A: DeallocRef> String<A> {
     ///
     /// # Panics
     /// Panics if the allocation fails.
+    #[allow(clippy::needless_pass_by_value)]
     #[inline]
     pub fn from_str_in(s: &str, a: A) -> Self
     where
@@ -613,6 +617,7 @@ impl<A: DeallocRef> String<A> {
     }
 
     /// Like `from_str_in` but returns errors instead of panicking.
+    #[allow(clippy::needless_pass_by_value)]
     #[inline]
     pub fn try_from_str_in(s: &str, a: A) -> Result<Self, CollectionAllocErr<A>>
     where
@@ -703,6 +708,7 @@ impl<A: DeallocRef> String<A> {
     /// # Panics
     ///
     /// Panics if allocation fails.
+    #[allow(clippy::needless_pass_by_value)]
     pub fn from_utf8_lossy_in(v: &[u8], a: A) -> Self
     where
         A: ReallocRef,
@@ -715,6 +721,7 @@ impl<A: DeallocRef> String<A> {
     }
 
     /// Like `from_utf8_lossy_in` but returns errors instead of panicking.
+    #[allow(clippy::needless_pass_by_value)]
     pub fn try_from_utf8_lossy_in(v: &[u8], a: A) -> Result<Self, CollectionAllocErr<A>>
     where
         A: ReallocRef,
@@ -751,6 +758,7 @@ impl<A: DeallocRef> String<A> {
     }
 
     /// Like `from_utf16` but parameterized over the choice of allocator for the returned `String`.
+    #[allow(clippy::needless_pass_by_value)]
     pub fn from_utf16_in(v: &[u16], a: A) -> Result<Self, FromUtf16Error>
     where
         A: ReallocRef,
diff --git a/src/vec.rs b/src/vec.rs
index de2c0e9..eee3c72 100644
--- a/src/vec.rs
+++ b/src/vec.rs
@@ -472,6 +472,7 @@ impl<T> Vec<T> {
 
 impl<T, A: DeallocRef> Vec<T, A> {
     /// Like `new` but parameterized over the choice of allocator for the returned `Vec`.
+    #[allow(clippy::needless_pass_by_value)]
     #[inline]
     pub fn new_in(a: A) -> Self {
         Self {
@@ -487,6 +488,7 @@ impl<T, A: DeallocRef> Vec<T, A> {
     ///
     /// * if the requested capacity exceeds `usize::MAX` bytes.
     /// * on 32-bit platforms if the requested capacity exceeds `isize::MAX` bytes.
+    #[allow(clippy::needless_pass_by_value)]
     #[inline]
     pub fn with_capacity_in(capacity: usize, a: A) -> Self
     where
@@ -506,6 +508,7 @@ impl<T, A: DeallocRef> Vec<T, A> {
     /// * `CapacityOverflow` if the requested capacity exceeds `usize::MAX` bytes.
     /// * `CapacityOverflow` on 32-bit platforms if the requested capacity exceeds `isize::MAX` bytes.
     /// * `AllocError` on OOM
+    #[allow(clippy::needless_pass_by_value)]
     #[inline]
     pub fn try_with_capacity_in(capacity: usize, a: A) -> Result<Self, CollectionAllocErr<A>>
     where