Repository navigation
mutants-nightly: weekly (Sun 03:00Z) on the X64 mutants pool, with the C324 7-day stop #5228
Closed as not planned
Description
Operator ruling, relayed by the cop on 2026-10-12: "stop and move to weekly". This concerns mutants-nightly.yml.
Measured state, from the cop at 16:25Z: 0 green in the last 10 runs, and red or cancelled every night from 09-30 to 10-06. Under C324 item 5, a LAB check that is red or unmeasured for 7 days stops running until its owner brings it back.
Scope:
- cron goes from daily to weekly, Sunday 03:00Z. The fallback diff window goes from 24 h to 7 days.
runs-on: [self-hosted, Linux, X64, mutants], never the ARM64 gpu runner. Theperf-gx10serialisation group is dropped with it.- C324 7-day stop: a scheduled run that is not green, with no green run in the 7 days before it, disables the workflow. Its owner brings it back with
gh workflow enable mutants-nightly.ymland a dispatch. scripts/check_mutants_pool.shfollows: it accepts only themutantspool and refuses the interim ARM64 gpu docker pool.
Arming waits until the mutants runner label is live (infra#1468).
Related: #4858 (interim ARM64 pool), #4142 (nightly half of the PR cap).
Activity
ci(mutants): weekly stop judges last week's run too (8-day window, ca…
ci(mutants): one since_iso for the stop window, called by --run and -…
fix(mutants): read the clock once through now_epoch (bashrs DET002)
fix(mutants): epoch window arithmetic; runner guard knows the mutants…
fix(mutants): run the stop job on the clean-room pool; runner guard b…
fix(guards): put `mutants` back in check_runner_labels DISCRIM (#5228)
noahgift commentedon Oct 14, 2026
Folded into #5309 as a checklist row (TRIAGE-100, 2026-10-14). Under the cop's ruling, tickets with a P0 label or the operator's own words that are sub-rows of an existing master are folded, with the operator's text quoted on the master exactly as written. Priority and owner carry over on the row.
Owner of this ticket: if you object, say so here or in the inbox and this ticket is reopened. Work on it continues as before; a PR for it reopens it.
Agent: aprender-clerk