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Merged
blp merged 1 commit into from
Jul 31, 2026
Merged

ci: Fail faster and get more information if Rust build times ago #6775

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14 changes: 14 additions & 0 deletions .github/workflows/build-rust.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,12 @@ env:
jobs:
build-rust:
name: Build Rust Binaries
# Backstop for the whole job (all steps): a stalled network call (e.g.
# sccache's GCS backend, which exposes no client-side timeout) can hang
# silently for the GHA default of 360 minutes before the merge queue's
# check_response_timeout_minutes force-cancels it. See incident on
# gke-runners-arm64, 2026-07-28: 5h13m of dead air, no compiler output.
timeout-minutes: 60

# We run this on two different architectures (x86_64 and aarch64)
strategy:
Expand Down Expand Up @@ -71,12 +77,20 @@ jobs:
touch $WEBCONSOLE_BUILD_DIR/index.html
cargo test --locked --doc --workspace -- --test-threads ${{ vars.CI_RUNNER_CORES || 20 }}

# sccache's GCS backend has no configurable timeout, so a stalled
# request (token refresh, upload, download) hangs the build with no
# error and no output. Bound the step directly so it fails fast rather
# than riding the job timeout to its limit.
- name: Build Rust binaries
timeout-minutes: 45
run: |
FEATURES="${{ env.CARGO_FEATURES_BASE }}"
cargo build ${{ env.CARGO_FLAGS }} --features "$FEATURES" --target=${{ matrix.target }}

# Runs even after a timeout above, so cache hit/miss stats survive to
# help diagnose whether sccache was the cause of a stall.
- name: Print sccache stats
if: always()
run: |
sccache --show-stats

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