diff --git a/build.rs b/build.rs
index a0a54620..abe44c42 100644
--- a/build.rs
+++ b/build.rs
@@ -5,6 +5,7 @@ const NIGHTLY: bool = true;
 const NIGHTLY: bool = false;
 
 fn main() {
+    println!("cargo::rustc-check-cfg=cfg(nightly)");
     // Set cfg flags depending on release channel
     if NIGHTLY {
         println!("cargo:rustc-cfg=nightly");
diff --git a/may_queue/build.rs b/may_queue/build.rs
index a0a54620..abe44c42 100644
--- a/may_queue/build.rs
+++ b/may_queue/build.rs
@@ -5,6 +5,7 @@ const NIGHTLY: bool = true;
 const NIGHTLY: bool = false;
 
 fn main() {
+    println!("cargo::rustc-check-cfg=cfg(nightly)");
     // Set cfg flags depending on release channel
     if NIGHTLY {
         println!("cargo:rustc-cfg=nightly");
diff --git a/may_queue/src/mpsc.rs b/may_queue/src/mpsc.rs
index da007dab..78e9ceec 100755
--- a/may_queue/src/mpsc.rs
+++ b/may_queue/src/mpsc.rs
@@ -27,6 +27,7 @@ struct Slot<T> {
 impl<T> std::panic::RefUnwindSafe for Slot<T> {}
 
 impl<T> Slot<T> {
+    #[allow(clippy::declare_interior_mutable_const)]
     const UNINIT: Self = Self {
         value: UnsafeCell::new(MaybeUninit::uninit()),
         ready: AtomicUsize::new(0),
diff --git a/may_queue/src/spmc.rs b/may_queue/src/spmc.rs
index e12f8fca..c359387c 100644
--- a/may_queue/src/spmc.rs
+++ b/may_queue/src/spmc.rs
@@ -24,6 +24,7 @@ struct Slot<T> {
 }
 
 impl<T> Slot<T> {
+    #[allow(clippy::declare_interior_mutable_const)]
     const UNINIT: Self = Self {
         value: UnsafeCell::new(MaybeUninit::uninit()),
     };
diff --git a/may_queue/src/spsc.rs b/may_queue/src/spsc.rs
index 76947d7b..c59e3b59 100644
--- a/may_queue/src/spsc.rs
+++ b/may_queue/src/spsc.rs
@@ -24,6 +24,7 @@ struct Slot<T> {
 }
 
 impl<T> Slot<T> {
+    #[allow(clippy::declare_interior_mutable_const)]
     const UNINIT: Self = Self {
         value: UnsafeCell::new(MaybeUninit::uninit()),
     };