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Fresh-emit cargo-green: reproduce+classify the 1667 rustc errors (receipt on 5-regen-cutover carrier, #6253), confirm #6243 C8-tail coverage, fix the residue, then execute regen cutover #1 (absorb 40-file latent drift, un-ignore machine_width witness per cutover discipline). Coordinate with proud-mo - #6258

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Auto-opened by session-dashboard for session quiet-crab-814.
Pushing to session/quiet-crab-814 advances this PR.

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gunbai-bot Bot marked this pull request as ready for review July 5, 2026 03:05
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gunbai-bot Bot force-pushed the session/quiet-crab-814 branch from b83c9e2 to d1f9d10 Compare July 5, 2026 04:00
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Branch reset to main HEAD. Cutover execution is proud-moth-478's per sharp-deer-310's scope steer; my speculative alias-qualification fix (Magnitude/CommutativeSemiring bare-leaf emission) was unverified and out of scope, so I dropped it rather than land unproven emitter changes. Reproduce+classify work was already done upstream (E0308=793, E0614=704, E0425=139, E0282=29, E0631=2). Picking up the new assigned work: E0308/E0614 cascade split + E0282/E0631 tail root-cause.

briansrls added a commit that referenced this pull request Jul 5, 2026
…tirement path (delete-mass triage) (#6272)

* pipeline.rs self_gen8 cluster: retire 28 of 31 fns (typed dispositions; 3 kept for def-unification lane)

Delete-mass triage of the self_gen8 cluster per the test_migration_debt drain
(#6261 retirement path). Ground truth measured 2026-07-05 via
cargo test -p v1-compiler-tests self_gen8 -- --include-ignored: 22 passed,
9 failed - 8 of the 17 #[ignore]d fns carried stale red-on-main reasons and
pass on main today.

- 22 green fns -> DeleteRedundant: seed-corpus pattern families (homonymous
  type names, variant-specific imports, kernel-ambient types, direct type
  imports) are byte-pinned by RegenVerifyGate (regen_stage0 --verify, #5873)
  plus the emitted-seed rustc/clippy gates; beyond-corpus synthetic shapes
  (parametric-alias RHS, opaque parametric decls, proxy chains, wildcard
  imports) are executed by the v2 self-host fresh-emit lane over dag/std's
  real instances with deficits enumerated in the 1667-error receipt
  (#6253/#6258). An #[ignore]d pin runs in no gate - zero delivered signal.
- 6 red fns -> DeleteLowValue: #[ignore] since #5427, never run in any gate,
  desired-but-absent seed-emitter behavior on synthetic fixtures; deficit
  ownership is the fresh-emit lane.
- 3 red fns KEPT (stays_unemitted alias-to-opaque trio):
  dag/gunbc/plans/dag_v2_defork_audit.dag claims them for the def-unification
  lane (node://adhoc-9d2bb9c3-e7b) - premise flips, not deletes.

Typed receipt: dag/test/retirement/pipeline_self_gen8_retired.dag (two
TestModuleRetirement rows). Receipt-only w.r.t. the delete-guard - the
contributed stem pipeline_self_gen8 matches no v1 test file and pipeline.rs
itself survives, so its eventual file deletion still requires its own
coverage.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Repoint kept trio's #[ignore] reasons to their owning lane (def-unification, node://adhoc-9d2bb9c3-e7b)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Brian Searls <briansrls@gunb.ai>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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