rust-lang/futures-rs

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Zero-cost asynchronous programming in Rust

Stars: 5.9k
Forks: 707
Open beginner issues: 1
Indexed issues: 211
Avg merge: 10h 17m
Merged PRs (30d): 5

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Sep 8, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

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211 open issues indexed

Add AsyncReadExt::take_exact Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/futures-rs#3048 · Opened Sep 7, 2026
Invalid URL in code comment Open

Difficulty 1/5 Under an hour Newbie friendliness 85/100

rust-lang/futures-rs#3029 · Opened Jul 31, 2026
feat(future_tests): add extension trait for manual future polling Open

Difficulty 5/5 3-5 days Newbie friendliness 52/100

rust-lang/futures-rs#3018 · Opened Jun 26, 2026
Create `RemoteSpawn` trait that spawns local futures on remote threads Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

rust-lang/futures-rs#3008 · Opened May 5, 2026
Design decisions behind having poll_close in AsyncWrite? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/futures-rs#2999 · 1 comment · Opened Mar 19, 2026
Delegate access macros? Should they be public? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

rust-lang/futures-rs#2996 · Opened Feb 27, 2026
Mention `Unpin` requirement in `Stream::by_ref()` Open

Difficulty 1/5 Under an hour Newbie friendliness 55/100

rust-lang/futures-rs#2995 · 2 reactions · Opened Feb 27, 2026
inclusive version of StreamExt::take_while? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/futures-rs#2994 · Opened Feb 27, 2026
0.4: Replace futures::future::{ready,pending,etc.} with re-export of core::future's same items Open

A-future

Difficulty 3/5 1-2 days Newbie friendliness 25/100

rust-lang/futures-rs#2993 · 1 reaction · Opened Feb 17, 2026
Re-export core::task::ready at futures*::task::ready Open

A-task

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

rust-lang/futures-rs#2992 · 1 reaction · Opened Feb 17, 2026
docs claim `Mutex` is "Available on *crate feature* `alloc` only." but in fact it requires `alloc` *and* `std` (std implies alloc) Open

docs

Difficulty 1/5 Under an hour Newbie friendliness 55/100

rust-lang/futures-rs#2985 · 1 comment · Opened Jan 13, 2026
`.buffered(0).next().await` hangs indefinitely Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/futures-rs#2981 · 1 comment · Opened Dec 10, 2025
Allow `StreamExt::collect` to return a `Result` like `Iterator::collect` Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

rust-lang/futures-rs#2979 · 1 reaction · Opened Nov 15, 2025
`StreamExt::split` docs are misleading — it’s not truly concurrent and serializes reads/writes via BiLock Open

Difficulty 1/5 Under an hour Newbie friendliness 58/100

rust-lang/futures-rs#2978 · Opened Nov 9, 2025
Use `track_caller` for `SpawnExt` (and maybe `LocalSpawnExt`) Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

rust-lang/futures-rs#2977 · 1 reaction · Opened Nov 3, 2025
Support for LocalWaker in FuturesUnordered Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

rust-lang/futures-rs#2975 · 1 comment · Opened Oct 20, 2025
Mention that sending to a Sink at the same time has no well-defined order Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

rust-lang/futures-rs#2974 · 1 comment · Opened Oct 18, 2025
Mention that the orderedness of stream/sink to be undefined in the documentation? Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

rust-lang/futures-rs#2973 · 1 comment · Opened Oct 18, 2025
Add `into_raw` / `from_raw` to `futures_channel::oneshot::Sender` Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/futures-rs#2970 · Opened Sep 30, 2025
`SinkExt::with` or `SinkExt::map` for non-async functions Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rust-lang/futures-rs#2963 · Opened Aug 12, 2025
`Buffered` and `BufferUnordered` do not always reach to max concurrency Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/futures-rs#2961 · Opened Jul 21, 2025
Timer trait for shared timeout/interval extensions Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/futures-rs#2959 · Opened Jul 9, 2025
Support for no_std targets without atomics extension Open

C-feature-request

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/futures-rs#2953 · 7 comments · Opened May 5, 2025
Queue one more incoming item when an item is returned for `Stream::buffered` and `Stream::buffer_unordered` Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

rust-lang/futures-rs#2937 · Opened Mar 30, 2025
docs: Invalid link in stream::select_with_strategy Open

docs

Difficulty 1/5 Under an hour Newbie friendliness 48/100

rust-lang/futures-rs#2935 · Opened Mar 23, 2025
`Shared` `.await` affects polling the unrelated `Future` that is `.await`ed right after it Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/futures-rs#2934 · 1 comment · Opened Mar 16, 2025
Select macro docs are incorrect Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rust-lang/futures-rs#2932 · 1 comment · 1 reaction · Opened Mar 14, 2025
`futures_util` does not reexport `futures_channel` when `channel` feature is enabled Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

rust-lang/futures-rs#2931 · Opened Mar 7, 2025
SpawnError should support alloc failures Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/futures-rs#2928 · Opened Feb 26, 2025
Missing function to generate a TryStream from an iterator? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rust-lang/futures-rs#2923 · 2 comments · Opened Feb 13, 2025
Add iterator methods to `BufferUnordered` Open

A-stream C-feature-request

Difficulty 4/5 3-5 days Newbie friendliness 38/100

rust-lang/futures-rs#2922 · Opened Feb 8, 2025
BoxSink alias Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/futures-rs#2919 · 2 reactions · Opened Jan 23, 2025
Add `reduce` to `StreamExt`/`try_reduce` to `TryStreamExt` Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rust-lang/futures-rs#2918 · Opened Jan 22, 2025
FutureExt::shared does not specify potentially important behaviour in docs. Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

rust-lang/futures-rs#2913 · 6 comments · Opened Jan 12, 2025
Add `_timeout` variants to blocking executions Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rust-lang/futures-rs#2911 · 1 reaction · Opened Jan 7, 2025
Why Unpin bound for Select? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/futures-rs#2902 · 1 comment · Opened Dec 19, 2024
Use AsyncFn family of traits (async closures) Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

rust-lang/futures-rs#2901 · 5 comments · 4 reactions · Opened Dec 15, 2024
`FutureExt::remote_handle` causes a silent panic Open

A-future bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rust-lang/futures-rs#2900 · 3 comments · Opened Dec 7, 2024
Timing out on `SinkExt::send` still causes the item to be re-inserted later into the bounded channel Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

rust-lang/futures-rs#2894 · 1 comment · Opened Oct 27, 2024
Add "dynamic" version of `buffer(n)` and `buffer_unordered(n)` Open

A-stream C-feature-request

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/futures-rs#2882 · 1 comment · Opened Sep 5, 2024
Consider adding `.try_enumerate()` to mirror `.enumerate()` for `Stream<Item = Result<...>>` Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rust-lang/futures-rs#2874 · Opened Aug 1, 2024
BiLock fairness guarantees (or lack thereof) are not documented Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rust-lang/futures-rs#2873 · Opened Jul 22, 2024
`now_or_never` name and documentation is misleading and ambiguous respectively Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/futures-rs#2871 · 1 reaction · Opened Jul 16, 2024
Add `BoxTryFuture` and `BoxTryStream` aliases Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

rust-lang/futures-rs#2869 · 3 comments · Opened Jul 12, 2024
try_join_all does not short circuit for large input Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

rust-lang/futures-rs#2866 · Opened Jun 26, 2024
`StreamExt::scan` lacks a non-Option version Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

rust-lang/futures-rs#2860 · Opened May 15, 2024
implement OwnedMappedMutexGuard Open

A-lock C-feature-request

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/futures-rs#2858 · Opened May 13, 2024
io: impl AsyncWrite for Empty Open

A-io S-needs-implementation

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rust-lang/futures-rs#2855 · 1 reaction · Opened May 3, 2024
Add `StreamExt::map_while` Open

A-stream C-feature-request S-needs-implementation

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/futures-rs#2853 · 1 comment · 2 reactions · Opened Apr 26, 2024
[Discussion] `Shared` seems to wake up the same waker that was polling it Open

C-question

Difficulty 4/5 3-5 days Newbie friendliness 32/100

rust-lang/futures-rs#2852 · 1 comment · Opened Apr 21, 2024

rust-lang/futures-rs

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