Track guessed as P from the FAILING STEP — line 7 of 3, if ./compiler/pascal26 test/test_setlength_cast_refusal.pas /tmp/test_slcastref26 2>&1 \ | grep -q 'SetLength expects a , which names test/test_setlength_cast_refusal.pas. Not from the job's name or its src: those describe what the job is ABOUT, and this job's recipe spans 3 source file(s). The ranker reads frontmatter, so this line — not the body — decides who works it; correct it if the guess is wrong.

origin/master has advanced 2 commit(s) since this sha. Re-verify at current HEAD before acting — the callback is tagged to the sha that was tested, which may no longer be the state of the tree.

regression: test-core#src:test/test_alias_cast_assign_target.pas at 91b4b77ec631 in step 7/3, if ./compiler/pascal26 test/test_setlength_cast_refusal.pas /tmp/test_slcastref26 2>&1 \ | grep -q 'SetLength expects a… (auto-filed by twatch)

• Type: regression (auto-filed by Track T watcher, host seven, twatch 065bb7eaf0d5). Untriaged.
• Found: 2026-09-03T16:51:44Z
• Test source: test/test_alias_cast_assign_target.pas tools/expect_same.sh +1
• Failing step: line 7 of 3 of the job's recipe; it names test/test_setlength_cast_refusal.pas.

  if ./compiler/pascal26 test/test_setlength_cast_refusal.pas /tmp/test_slcastref26 2>&1 \ | grep -q 'SetLength expects a string variable'; then \ echo "ok: test_setlength_cast_refusal (int alias cast still refused)"; \ else \ echo "FAIL: SetLength(TI(i), n) is no longer refused -- the cast-drop widen
  
  

Repro

tools/testmgr.py --tier native --job 'test-core#src:test/test_alias_cast_assign_target.pas' at 91b4b77ec631e4027893233277450f576e3008fc

Range

The named sha 91b4b77ec631 CANNOT be the cause — it touches no buildable file (docs / tickets / tstate only). It is the sha that was TESTED, i.e. the upper bound of an untested range; the cause is somewhere below it.

bad 91b4b77ec631, last good 5e2dcc37c253, 1 commit(s) in range — the watcher narrows this by idle bisect; check tstate/TSTATE.md for the current range.

Log tail

ok: /tmp/testmgr-scratch-1627775/test_aliascast26  [code=69400B  data=4180B  bss=43788B  procs=136]
FAIL: SetLength(TI(i), n) is no longer refused -- the cast-drop widened past string types

Stub ticket: signal only. Track T agent (face 2) enriches or a dev track takes it from the repro line.

RE-LANED T/P -> A by the coordinator, 2026-09-03, on COMMIT CONTENT, not on the failing step. The only code commit between the last GREEN native (5e2dcc37c253) and this RED (91b4b77ec631) is 0dedfb86c "fix(A): SetLength through a field, an element or a deref", which touches Makefile, compiler/ir_codegen.inc and the 386/aarch64/arm32/riscv32/xtensa arms plus compiler/pasparser_stmt.inc. The other five commits in the window touch no code at all. That is a suspect established by ref arithmetic with zero builds — it is NOT a measured cause, and the author (franka-29) has been told and may reject it.

This may not be a regression. The alias-cast row fails on a REFUSAL grep (SetLength expects a), and 0dedfb86c deliberately widened what SetLength accepts. A refusal test going red is exactly what an intended widening looks like; if that is what happened, the TEST is what needs updating and there is no defect here. Establish which before treating any of these three as a bug.

• 2026-09-03 — resolved, commit f199ca260.