fix CI for recent rustc

Allow for unused `pub use` in experimental API which doesn't have its mods public for noiw.
MIPS CI is fully broken (doesn't find the MIPS toolchain) so disable it for now.
Reenable powerpc64 which is no longer broken

.github/workflows/ci.yml

@@ -132,8 +132,8 @@ jobs:
         target:
           - i686-unknown-linux-gnu
           - powerpc-unknown-linux-gnu
-#          - powerpc64-unknown-linux-gnu
-          - mips-unknown-linux-gnu
+          - powerpc64-unknown-linux-gnu
+#          - mips-unknown-linux-gnu
           - arm-linux-androideabi
 
     steps:

src/collections/mod.rs

@@ -11,10 +11,17 @@ pub mod hash_set;
 pub mod linked_list;
 pub mod vec_deque;
 
+#[allow(unused)]
 pub use binary_heap::BinaryHeap;
+#[allow(unused)]
 pub use btree_map::BTreeMap;
+#[allow(unused)]
 pub use btree_set::BTreeSet;
+#[allow(unused)]
 pub use hash_map::HashMap;
+#[allow(unused)]
 pub use hash_set::HashSet;
+#[allow(unused)]
 pub use linked_list::LinkedList;
+#[allow(unused)]
 pub use vec_deque::VecDeque;

src/option/mod.rs

@@ -5,6 +5,7 @@
 
 mod from_stream;
 
+#[allow(unused)]
 #[doc(inline)]
 pub use std::option::Option;
 

src/result/mod.rs

@@ -5,6 +5,7 @@
 
 mod from_stream;
 
+#[allow(unused)]
 #[doc(inline)]
 pub use std::result::Result;
 

src/string/mod.rs

@@ -5,5 +5,6 @@
 mod extend;
 mod from_stream;
 
+#[allow(unused)]
 #[doc(inline)]
 pub use std::string::String;

src/sync/waker_set.rs

@@ -149,7 +149,7 @@ impl WakerSet {
     /// Returns `true` if at least one operation was notified.
     #[cold]
     fn notify(&self, n: Notify) -> bool {
-        let mut inner = &mut *self.lock();
+        let inner = &mut *self.lock();
         let mut notified = false;
 
         for (_, opt_waker) in inner.entries.iter_mut() {

src/vec/mod.rs

@@ -6,5 +6,6 @@
 mod extend;
 mod from_stream;
 
+#[allow(unused)]
 #[doc(inline)]
 pub use std::vec::Vec;