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chore: pin rust toolchain to 1.95.0 - #833

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matt2e merged 1 commit into
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chore/pin-rust-toolchain-1.95.0
Jun 29, 2026
Merged

chore: pin rust toolchain to 1.95.0#833
matt2e merged 1 commit into
mainfrom
chore/pin-rust-toolchain-1.95.0

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@matt2e

@matt2e matt2e commented Jun 29, 2026

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What

Pin the Rust toolchain to an explicit version (1.95.0) instead of floating on stable.

Why

  • Deterministic builds. Floating stable means the compiler silently changes whenever a dev or CI runs rustup update — which can shift behavior/lints and invalidate build caches. Pinning makes the toolchain reproducible across machines and CI.
  • Consistency. Our other Rust repos (goose, goose-internal) already pin explicit versions; builderbot was the outlier still on stable.

Notes

  • 1.95.0 is the current latest stable.
  • One-time toolchain bump: the first build per machine/CI after merge will be a full rebuild, and CI's cached toolchain will update.

🤖 Generated with Claude Code

Pin to an explicit version instead of floating on `stable` so the
compiler is reproducible across machines and CI. Floating `stable`
lets `rustup update` silently move the toolchain, which can shift
behavior/lints and invalidate build caches. Our other Rust repos
(goose, goose-internal) already pin explicit versions; builderbot was
the outlier.

1.95.0 is the current latest stable. First build per machine/CI after
merge will be a one-time full rebuild.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@matt2e
matt2e requested review from baxen and wesbillman as code owners June 29, 2026 07:23
@matt2e
matt2e merged commit 617b0ab into main Jun 29, 2026
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@matt2e
matt2e deleted the chore/pin-rust-toolchain-1.95.0 branch June 29, 2026 09:06
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