fix(deps): bump crossbeam-epoch to 0.9.20 (RUSTSEC-2026-0204) - #827
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Patches an invalid-pointer-dereference in fmt::Display for Atomic/Shared when the underlying pointer is null, pulled in transitively via rayon. No other dependencies change.
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Summary
Unblocks all currently-open PRs:
main's branch protection requires theSecurity AuditandDependency Check (cargo-deny)checks, and both are failing repo-wide since RUSTSEC-2026-0204 (invalid-pointer-dereference incrossbeam-epoch'sfmt::DisplayforAtomic/Sharedwhen the underlying pointer is null) was published 2026-07-06 against the currently-pinnedcrossbeam-epoch 0.9.18(pulled in transitively viarayon).Fix
cargo update -p crossbeam-epoch→0.9.18→0.9.20(patched version). Confirmed via--dry-runand a full re-resolve that this is the only dependency that changes — no other lockfile churn, norayonversion bump needed.Testing
cargo check --libpasses.Cargo.lockonly.