Merge #633

633: Update documentation on no_std support r=taiki-e a=taiki-e



Co-authored-by: Taiki Endo <[email protected]>

Author: bors[bot]

README.md

@@ -22,8 +22,8 @@ This crate provides a set of tools for concurrent programming:
 #### Data structures
 
 * [`deque`], work-stealing deques for building task schedulers.
-* [`ArrayQueue`], a bounded MPMC queue that allocates a fixed-capacity buffer on construction.
-* [`SegQueue`], an unbounded MPMC queue that allocates small buffers, segments, on demand.
+* [`ArrayQueue`], a bounded MPMC queue that allocates a fixed-capacity buffer on construction.<sup>(alloc)</sup>
+* [`SegQueue`], an unbounded MPMC queue that allocates small buffers, segments, on demand.<sup>(alloc)</sup>
 
 #### Memory management
 
@@ -44,7 +44,7 @@ This crate provides a set of tools for concurrent programming:
 
 *Features marked with <sup>(no_std)</sup> can be used in `no_std` environments.*<br/>
 *Features marked with <sup>(alloc)</sup> can be used in `no_std` environments, but only if `alloc`
-and `nightly` are enabled.*
+feature is enabled.*
 
 [`AtomicCell`]: https://docs.rs/crossbeam/*/crossbeam/atomic/struct.AtomicCell.html
 [`AtomicConsume`]: https://docs.rs/crossbeam/*/crossbeam/atomic/trait.AtomicConsume.html

crossbeam-epoch/README.md

@@ -20,7 +20,7 @@ immediately. Epoch-based GC is an efficient mechanism for deferring destruction
 shared objects until no pointers to them can exist.
 
 Everything in this crate except the global GC can be used in `no_std` environments, provided that
-features `alloc` and `nightly` are enabled.
+`alloc` feature is enabled.
 
 ## Usage
 

crossbeam-queue/README.md

@@ -17,6 +17,9 @@ This crate provides concurrent queues that can be shared among threads:
 * [`ArrayQueue`], a bounded MPMC queue that allocates a fixed-capacity buffer on construction.
 * [`SegQueue`], an unbounded MPMC queue that allocates small buffers, segments, on demand.
 
+Everything in this crate can be used in `no_std` environments, provided that `alloc` feature is
+enabled.
+
 [`ArrayQueue`]: https://docs.rs/crossbeam-queue/*/crossbeam_queue/struct.ArrayQueue.html
 [`SegQueue`]: https://docs.rs/crossbeam-queue/*/crossbeam_queue/struct.SegQueue.html