Bump the rust-crates group with 3 updates

[dependabot]

Bumps the rust-crates group with 3 updates: memchr, socket2 and tokio.

Updates memchr from 2.8.0 to 2.8.3

Commits

• 5fdb40c 2.8.3
• 922c7b5 memchr: let compiler know that indexes returned by memchr fns are in bounds
• e21e9fb arch: add unsafe to internal routines
• 581faf0 rebar: update memchr version
• a61ac1a 2.8.2
• a08bf90 arch: fix undefined behavior in lower level (but public) APIs
• b41293b rebar: update memchr to latest
• 87467c9 impl: remove unnecessary clones in into_owned impls
• ff7dca7 2.8.1
• 016878a target: fix aarch64_be endianness bug
• Additional commits viewable in compare view

Updates socket2 from 0.6.3 to 0.6.5

Changelog

Sourced from socket2's changelog.

0.6.5

• Add support for Emscripten (wasm32) (rust-lang/socket2#660).
• Add support for NuttX (rust-lang/socket2#663).
• Enable Socket::(set_)tos_v4 on illumos (rust-lang/socket2#662).

0.6.4

• Implement Send for MsgHdr(Mut) (rust-lang/socket2#650).
• Add support for horizonOS/n3ds (rust-lang/socket2#653).
• Switch QNX 8.0 and 7.1 to use TCP_KEEPIDLE instead of TCP_KEEPALIVE (rust-lang/socket2#654).
• Fixed an issue on Windows where for Socket::only_v6 sometimes booleans are 1 byte other times it's 4 bytes (rust-lang/socket2#655).

Commits

• 239dd83 Release v0.6.5
• 4b7a11c nuttx: type IovLen to c_ulong
• 8f1c684 Support NuttX
• 9f30d66 Enable Socket::(set_)tos_v4 on illumos
• f305cc9 Define keepalive options for Emscripten
• f9dff09 Add support for wasm32-unknown-emscripten (#660)
• 9f41644 Release v0.6.4
• 5f64403 Special case assume_init for Bool on Windows (#655)
• c93d95a Split target_os = "nto" cfg by env so io-sock variants use TCP_KEEPIDLE (#654)
• 27c0204 Port to horizon-os/n3ds (#653)
• Additional commits viewable in compare view

Updates tokio from 1.52.3 to 1.53.0

Release notes

Sourced from tokio's releases.

Tokio v1.53.0

1.53.0 (July 17th, 2026)

Added

• fs: implement From<OwnedFd> and From<OwnedHandle> for File (#8266)
• metrics: add task schedule latency metric (#7986)
• net: add SocketAddr methods to Unix sockets (#8144)

Changed

• io: add #[inline] to IO trait impls for in-memory types (#8242)
• net: implement UCred::pid on FreeBSD (#8086)
• net: support Nuttx target os (#8259)
• signal: refactor global variables on Windows (#8231)
• sync: mpsc::{Receiver,UnboundedReceiver} now drops waker on drop, even if there are still senders (#8095)
• taskdump: support taskdumps on s390x (#8192)
• time: add #[track_caller] to timeout_at() (#8077)
• time: consolidate mutex locks on spurious poll (#8124)
• time: defer waker clone on spurious poll (#8107)
• time: move lazy-registration state into Sleep (#8132)
• tracing: remove unnecessary span clone (#8126)

Fixed

• io: do not treat zero-length reads as EOF in Chain (#8251)
• net: use getpeereid for QNX peer credentials (#8270)
• runtime: avoid illegal state in FastRand (#8078)
• sync: wake mpsc receiver when a queued reserve[_many] returns permits (#8260)
• taskdump: skip double wake on Trace::capture/Trace::trace_with (#8043)
• time: avoid stack overflow in runtime constructor (#8093)
• time (alt timer): ensure timers stay in the same runtime after .reset() (#8169)

IO uring (unstable)

• fs: use io-uring for fs::try_exists (#8080)
• fs: use io-uring for renaming files (#7800)
• rt: flush io-uring CQE in case of CQE overflow (#8277)

Documented

• docs: clarify cancel safety wording (#8181)
• fs: clarify create_dir_all succeeds if path exists (#8149)
• io: add warning about stdout reordering with multiple handles (#8276)
• net: document pipe try_read*/try_write* readiness behavior (#8032)
• runtime: document interaction with fork() (#8202)
• sync: clarify broadcast lagging semantics (#8239)
• sync: document memory ordering guarantees for Semaphore (#8119)
• task: explain why yield_now defers its waker (#8254)
• time: add panic docs to timeout_at() (#8077)

... (truncated)

Commits

• be689a3 chore: prepare Tokio v1.53.0 (#8294)
• 50f76c7 chore: prepare tokio-macros v2.7.1 (#8295)
• f61fcca Merge 'tokio-1.52.4' into 'master' (#8290)
• efdba5f chore: prepare Tokio v1.52.4 (#8289)
• b0ba02e Merge 'tokio-1.51.4' into 'tokio-1.52.x' (#8288)
• 7bcd2d3 taskdump: remove crate disambiguators from output (#8288)
• f84b209 chore: prepare Tokio v1.51.4 (#8286)
• eacb98e runtime: don't skip the driver when before_park schedules work (#8222)
• 5e16ee0 task: avoid replacing the JoinQueue waker in try_join_next (#8279)
• 88212ab sync: document memory ordering guarantees for Semaphore (#8119)
• Additional commits viewable in compare view

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