Who contributed to Rust on July 31, 2026?

8 developers shipped this update, including bors, Jakub Beránek, camelid, renovate, Turbo87, jasonaowen, shulaoda, and 许杰友 Jieyou Xu (Joe).

What were the notable Rust updates?

Merge backend binaries into a single `crates-io` binary, Add backend binary compatibility shims, and Include trailing comma in single param vertical fn.

@rust-lang

The Rust language, Cargo, and the standard library

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The Wire · Showcase

CRATES.IO SHRINKS 21% WITH BINARY CONSOLIDATION

By RepoJournal · Filed 07:00 UTC on July 31, 2026 · About Rust

8 people shipped this

bors @bors 3 cited

renovate @renovate 2 cited

Turbo87 @Turbo87 2 cited

camelid @camelid 1 cited

jasonaowen @jasonaowen 1 cited

shulaoda @shulaoda 1 cited

Jakub Beránek @Kobzol

许杰友 Jieyou Xu (Joe) @jieyouxu

The Rust package registry just merged four backend binaries into a single executable, cutting its Heroku slug size from 116.3 MB down to 92.1 MB in one move.

The merge collapses `server`, `background-worker`, `monitor`, and administrative commands into one `crates-io` binary [1], a structural win that eliminates redundancy without breaking existing scheduled jobs. Turbo87 included temporary shims [2] so operators can migrate cleanly without touching deployed infrastructure. On the formatting front, rustfmt shipped two critical fixes: a vertical function parameter layout fix that preserves trailing commas [3], and a macro-aware patch that stops the field init shorthand from breaking valid macro invocations [4]. The shorthand guard now checks `!context.inside_macro()`, preventing rustfmt from turning working code like `seq!(PrimitiveTask { name, preconditions })` back into syntax that won't compile. Across the ecosystem, crates.io index saw routine updates to substrait-prost, cargo-lsp, and STUN protocol libraries [ref:1,2,3], while renovate dependencies climbed to mise 2026.7.18 and Storybook 10.5.5 [ref:12,13]. Bors gained better queue visibility with expected time display for pending PRs [10], helping maintainers forecast merge windows.

Action items

→ Review ops guide updates for crates-io binary consolidation rust-lang/crates.io [plan]
→ Update your rustfmt config if using field_init_shorthand in macro contexts rust-lang/rustfmt [monitor]
→ Enable merge queue on your repo workflows per rustfmt's pattern rust-lang/rustfmt [monitor]

References

[1] Merge backend binaries into a single `crates-io` binary ↗ rust-lang/crates.io
[2] Add backend binary compatibility shims rust-lang/crates.io
[3] Include trailing comma in single param vertical fn ↗ rust-lang/rustfmt
[4] fix: don't apply field init shorthand inside macro calls ↗ rust-lang/rustfmt
[5] Update crate `substrait-prost` rust-lang/crates.io-index
[6] Update crate `cargo-lsp` rust-lang/crates.io-index
[7] Update crate `stun-proto` rust-lang/crates.io-index
[8] Update dependency jdx/mise to v2026.7.18 ↗ rust-lang/crates.io
[9] Update dependency svelte-check to v4.7.4 ↗ rust-lang/crates.io
[10] Show expected time left for pending PRs ↗ rust-lang/bors

Quick answers

What shipped in Rust on July 31, 2026?: The Rust package registry just merged four backend binaries into a single executable, cutting its Heroku slug size from 116.3 MB down to 92.1 MB in one move. In total, 61 commits and 11 pull requests landed.
Who contributed to Rust on July 31, 2026?: 8 developers shipped this update, including bors, Jakub Beránek, camelid, renovate, Turbo87, jasonaowen, shulaoda, and 许杰友 Jieyou Xu (Joe).
What were the notable Rust updates?: Merge backend binaries into a single `crates-io` binary, Add backend binary compatibility shims, and Include trailing comma in single param vertical fn.

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