tests: fix warnings

examples/big_struct_in_place.rs

@@ -1,7 +1,5 @@
 #![feature(allocator_api)]
 
-use std::convert::Infallible;
-
 use pinned_init::*;
 
 // Struct with size over 1GiB

examples/error.rs

@@ -1,3 +1,4 @@
+#![allow(unused_attributes)]
 #![feature(allocator_api)]
 
 use core::convert::Infallible;
@@ -18,4 +19,5 @@ impl From<AllocError> for Error {
  }
 }
 
+#[allow(dead_code)]
 fn main() {}

examples/mutex.rs

@@ -1,4 +1,6 @@
+#![allow(unused_attributes)]
 #![feature(allocator_api)]
+
 use core::{
  cell::{Cell, UnsafeCell},
  marker::PhantomPinned,
@@ -16,6 +18,7 @@ use pinned_init::*;
 #[allow(unused_attributes)]
 #[path = "./linked_list.rs"]
 pub mod linked_list;
+#[allow(unused_imports)]
 pub use linked_list::Error;
 use linked_list::*;
 
@@ -100,6 +103,7 @@ impl<T> CMutex<T> {
  }
  }
 
+ #[allow(dead_code)]
  pub fn get_data_mut(self: Pin<&mut Self>) -> &mut T {
  // SAFETY: we have an exclusive reference and thus nobody has access to data.
  unsafe { &mut *self.data.get() }

examples/pthread_mutex.rs

@@ -1,5 +1,7 @@
 // inspired by https://github.com/nbdd0121/pin-init/blob/trunk/examples/pthread_mutex.rs
+#![allow(dead_code)]
 #![feature(allocator_api)]
+
 #[cfg(not(windows))]
 mod pthread_mtx {
  use core::{

tests/alloc_fail.rs

@@ -1,6 +1,6 @@
 #![feature(allocator_api)]
 
-use core::{alloc::AllocError, convert::Infallible};
+use core::alloc::AllocError;
 use pinned_init::*;
 use std::sync::Arc;
 

tests/const-generic-default.rs

@@ -1,5 +1,3 @@
-use std::convert::Infallible;
-
 use pinned_init::*;
 
 #[pin_data]

tests/many_generics.rs

@@ -1,3 +1,4 @@
+#![allow(dead_code)]
 use core::{marker::PhantomPinned, pin::Pin};
 use pinned_init::*;
 

tests/ring_buf.rs

@@ -1,4 +1,6 @@
+#![allow(unused_attributes)]
 #![feature(allocator_api)]
+
 use core::{
  alloc::AllocError,
  convert::Infallible,

tests/ui/expand/many_generics.expanded.rs

@@ -1,3 +1,4 @@
+#![allow(dead_code)]
 use core::{marker::PhantomPinned, pin::Pin};
 use pinned_init::*;
 trait Bar<'a, const ID: usize = 0> {

tests/zeroing.rs

@@ -1,3 +1,4 @@
+#![allow(dead_code)]
 use std::{marker::PhantomPinned, ptr::addr_of_mut};
 
 use pinned_init::*;