Merge branch 'main' into histbuf_as_slices

Author: korken89

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Add `Clone` and `PartialEq` implementations to `HistoryBuffer`.
 - Added an object pool API. see the `pool::object` module level doc for details
 - Add `HistoryBuffer::as_slices()`
+- Implemented `retain` for `IndexMap` and `IndexSet`.
 
 ### Changed
 
@@ -23,6 +24,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - renamed `pool::singleton::arc::Pool` to `ArcPool` and moved it into the `pool::arc` module
 - [breaking-change] changed the target support of memory pool API to only support 32-bit x86 and a
   subset of ARM targets. See the module level documentation of the `pool` module for details
+- relax trait requirements on `IndexMap` and `IndexSet`.
+- export `IndexSet` and `IndexMap` iterator types.
 
 - [breaking-change] this crate now depends on `atomic-polyfill` v1.0.1, meaning that targets that
   require a polyfill need a `critical-section` **v1.x.x** implementation.

cfail/ui/freeze.stderr

@@ -1,5 +1,5 @@
 error[E0499]: cannot borrow `q` as mutable more than once at a time
- --> ui/freeze.rs:7:5
+ --> $DIR/freeze.rs:7:5
   |
 6 |     let (_p, mut _c) = q.split();
   |                        --------- first mutable borrow occurs here

cfail/ui/not-send.stderr

@@ -1,14 +1,14 @@
 error[E0277]: `*const ()` cannot be sent between threads safely
-  --> ui/not-send.rs:19:5
+  --> $DIR/not-send.rs:19:15
    |
 19 |     is_send::<Consumer<NotSend, 4>>();
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
+   |               ^^^^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
    |
    = help: within `PhantomData<*const ()>`, the trait `Send` is not implemented for `*const ()`
    = note: required because it appears within the type `PhantomData<*const ()>`
-   = note: required because of the requirements on the impl of `Send` for `Consumer<'_, PhantomData<*const ()>, 4>`
+   = note: required for `Consumer<'_, PhantomData<*const ()>, 4>` to implement `Send`
 note: required by a bound in `is_send`
-  --> ui/not-send.rs:14:8
+  --> $DIR/not-send.rs:14:8
    |
 12 | fn is_send<T>()
    |    ------- required by a bound in this
@@ -17,16 +17,16 @@ note: required by a bound in `is_send`
    |        ^^^^ required by this bound in `is_send`
 
 error[E0277]: `*const ()` cannot be sent between threads safely
-  --> ui/not-send.rs:20:5
+  --> $DIR/not-send.rs:20:15
    |
 20 |     is_send::<Producer<NotSend, 4>>();
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
+   |               ^^^^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
    |
    = help: within `PhantomData<*const ()>`, the trait `Send` is not implemented for `*const ()`
    = note: required because it appears within the type `PhantomData<*const ()>`
-   = note: required because of the requirements on the impl of `Send` for `Producer<'_, PhantomData<*const ()>, 4>`
+   = note: required for `Producer<'_, PhantomData<*const ()>, 4>` to implement `Send`
 note: required by a bound in `is_send`
-  --> ui/not-send.rs:14:8
+  --> $DIR/not-send.rs:14:8
    |
 12 | fn is_send<T>()
    |    ------- required by a bound in this
@@ -35,10 +35,10 @@ note: required by a bound in `is_send`
    |        ^^^^ required by this bound in `is_send`
 
 error[E0277]: `*const ()` cannot be sent between threads safely
-  --> ui/not-send.rs:21:5
+  --> $DIR/not-send.rs:21:15
    |
 21 |     is_send::<Queue<NotSend, 4>>();
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
+   |               ^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
    |
    = help: within `Queue<PhantomData<*const ()>, 4>`, the trait `Send` is not implemented for `*const ()`
    = note: required because it appears within the type `PhantomData<*const ()>`
@@ -48,7 +48,7 @@ error[E0277]: `*const ()` cannot be sent between threads safely
    = note: required because it appears within the type `[UnsafeCell<MaybeUninit<PhantomData<*const ()>>>; 4]`
    = note: required because it appears within the type `Queue<PhantomData<*const ()>, 4>`
 note: required by a bound in `is_send`
-  --> ui/not-send.rs:14:8
+  --> $DIR/not-send.rs:14:8
    |
 12 | fn is_send<T>()
    |    ------- required by a bound in this
@@ -57,10 +57,10 @@ note: required by a bound in `is_send`
    |        ^^^^ required by this bound in `is_send`
 
 error[E0277]: `*const ()` cannot be sent between threads safely
-  --> ui/not-send.rs:22:5
+  --> $DIR/not-send.rs:22:15
    |
 22 |     is_send::<Vec<NotSend, 4>>();
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
+   |               ^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
    |
    = help: within `heapless::Vec<PhantomData<*const ()>, 4>`, the trait `Send` is not implemented for `*const ()`
    = note: required because it appears within the type `PhantomData<*const ()>`
@@ -69,7 +69,7 @@ error[E0277]: `*const ()` cannot be sent between threads safely
    = note: required because it appears within the type `[MaybeUninit<PhantomData<*const ()>>; 4]`
    = note: required because it appears within the type `heapless::Vec<PhantomData<*const ()>, 4>`
 note: required by a bound in `is_send`
-  --> ui/not-send.rs:14:8
+  --> $DIR/not-send.rs:14:8
    |
 12 | fn is_send<T>()
    |    ------- required by a bound in this
@@ -78,10 +78,10 @@ note: required by a bound in `is_send`
    |        ^^^^ required by this bound in `is_send`
 
 error[E0277]: `*const ()` cannot be sent between threads safely
-  --> ui/not-send.rs:23:5
+  --> $DIR/not-send.rs:23:15
    |
 23 |     is_send::<HistoryBuffer<NotSend, 4>>();
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
+   |               ^^^^^^^^^^^^^^^^^^^^^^^^^ `*const ()` cannot be sent between threads safely
    |
    = help: within `HistoryBuffer<PhantomData<*const ()>, 4>`, the trait `Send` is not implemented for `*const ()`
    = note: required because it appears within the type `PhantomData<*const ()>`
@@ -90,7 +90,7 @@ error[E0277]: `*const ()` cannot be sent between threads safely
    = note: required because it appears within the type `[MaybeUninit<PhantomData<*const ()>>; 4]`
    = note: required because it appears within the type `HistoryBuffer<PhantomData<*const ()>, 4>`
 note: required by a bound in `is_send`
-  --> ui/not-send.rs:14:8
+  --> $DIR/not-send.rs:14:8
    |
 12 | fn is_send<T>()
    |    ------- required by a bound in this