chore: Fix bench CI - #577
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samuelburnham
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August 20, 2026 03:11
arthurpaulino
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johnchandlerburnham
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Aug 20, 2026
The merge of main in c3f89ab kept rust-test on ubuntu-latest with the portable-codegen RUSTFLAGS pin from 05f6749, while also taking #577's setup-rust-toolchain, which now hard-requires a Warp Linux x64 runner — so the job failed the guard immediately. Both were fixes for the same native-codegen SIGILL flake, racing by twenty minutes; #577 resolved it by moving rust-test onto the Warp x64 fleet instead. Take main's side wholesale: the RUSTFLAGS pin is moot on the homogeneous Warp fleet, and keeping it there would override the authoritative .cargo/config.toml -Ctarget-cpu=native and re-key the warp-x64 cache with non-native binaries.
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Fixes a benchmarking abort from #575 (workflow log) due to running AVX-512 binaries compiled by Warpbuild on
ubuntu-latest(which doesn't support the same set of AVX instructions). Instead we now use Warpbuild runners for all bench jobs, varying machine type by workload