diff --git a/cyw43/src/fmt.rs b/cyw43/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/cyw43/src/fmt.rs
+++ b/cyw43/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-boot-nrf/src/fmt.rs b/embassy-boot-nrf/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-boot-nrf/src/fmt.rs
+++ b/embassy-boot-nrf/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-boot-rp/src/fmt.rs b/embassy-boot-rp/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-boot-rp/src/fmt.rs
+++ b/embassy-boot-rp/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-boot-stm32/src/fmt.rs b/embassy-boot-stm32/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-boot-stm32/src/fmt.rs
+++ b/embassy-boot-stm32/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-boot/src/fmt.rs b/embassy-boot/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-boot/src/fmt.rs
+++ b/embassy-boot/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-executor/src/fmt.rs b/embassy-executor/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-executor/src/fmt.rs
+++ b/embassy-executor/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-futures/src/fmt.rs b/embassy-futures/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-futures/src/fmt.rs
+++ b/embassy-futures/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-hal-internal/src/fmt.rs b/embassy-hal-internal/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-hal-internal/src/fmt.rs
+++ b/embassy-hal-internal/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-net-adin1110/src/fmt.rs b/embassy-net-adin1110/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-net-adin1110/src/fmt.rs
+++ b/embassy-net-adin1110/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-net-driver-channel/src/fmt.rs b/embassy-net-driver-channel/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-net-driver-channel/src/fmt.rs
+++ b/embassy-net-driver-channel/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-net-enc28j60/src/fmt.rs b/embassy-net-enc28j60/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-net-enc28j60/src/fmt.rs
+++ b/embassy-net-enc28j60/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-net-esp-hosted/src/fmt.rs b/embassy-net-esp-hosted/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-net-esp-hosted/src/fmt.rs
+++ b/embassy-net-esp-hosted/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-net-ppp/src/fmt.rs b/embassy-net-ppp/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-net-ppp/src/fmt.rs
+++ b/embassy-net-ppp/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-net/src/fmt.rs b/embassy-net/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-net/src/fmt.rs
+++ b/embassy-net/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-nrf/src/fmt.rs b/embassy-nrf/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-nrf/src/fmt.rs
+++ b/embassy-nrf/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-rp/src/fmt.rs b/embassy-rp/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-rp/src/fmt.rs
+++ b/embassy-rp/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-stm32-wpan/src/fmt.rs b/embassy-stm32-wpan/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-stm32-wpan/src/fmt.rs
+++ b/embassy-stm32-wpan/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-stm32/src/fmt.rs b/embassy-stm32/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-stm32/src/fmt.rs
+++ b/embassy-stm32/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-sync/src/fmt.rs b/embassy-sync/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-sync/src/fmt.rs
+++ b/embassy-sync/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-time/src/fmt.rs b/embassy-time/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-time/src/fmt.rs
+++ b/embassy-time/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-usb-dfu/src/fmt.rs b/embassy-usb-dfu/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-usb-dfu/src/fmt.rs
+++ b/embassy-usb-dfu/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-usb-synopsys-otg/src/fmt.rs b/embassy-usb-synopsys-otg/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-usb-synopsys-otg/src/fmt.rs
+++ b/embassy-usb-synopsys-otg/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }
 
diff --git a/embassy-usb/src/fmt.rs b/embassy-usb/src/fmt.rs
index 35b929fde..8ca61bc39 100644
--- a/embassy-usb/src/fmt.rs
+++ b/embassy-usb/src/fmt.rs
@@ -90,19 +90,15 @@ macro_rules! todo {
     };
 }
 
-#[cfg(not(feature = "defmt"))]
 #[collapse_debuginfo(yes)]
 macro_rules! unreachable {
     ($($x:tt)*) => {
-        ::core::unreachable!($($x)*)
-    };
-}
-
-#[cfg(feature = "defmt")]
-#[collapse_debuginfo(yes)]
-macro_rules! unreachable {
-    ($($x:tt)*) => {
-        ::defmt::unreachable!($($x)*)
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::unreachable!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::unreachable!($($x)*);
+        }
     };
 }