Track guessed as N from the FAILING STEP — line 1 of 24, ./compiler/pascal26 test/test_nilpy_bytearray_unbound_and_subclass.npy /tmp/test_nilpy_baunbound26, which names test/test_nilpy_bytearray_unbound_and_subclass.npy. Not from the job's name or its src: those describe what the job is ABOUT, and this job's recipe spans 2 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 5 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-nilpy#src:test/test_nilpy_bytearray_unbound_and_subclass.npy at b4104386ae9c in step 1/24, ./compiler/pascal26 test/test_nilpy_bytearray_unbound_and_subclass.npy /tmp/test_nilpy_baunbound26 (auto-filed by twatch)

• Type: regression (auto-filed by Track T watcher, host borg, twatch 1f06bcf02d3f). Untriaged.
• Found: 2026-09-19T15:16:10Z
• Test source: test/test_nilpy_bytearray_unbound_and_subclass.npy test/test_nilpy_bytearray_unbound_and_subclass.expected
• Failing step: line 1 of 24 of the job's recipe; it names test/test_nilpy_bytearray_unbound_and_subclass.npy.

  ./compiler/pascal26 test/test_nilpy_bytearray_unbound_and_subclass.npy /tmp/test_nilpy_baunbound26
  
  

Repro

tools/testmgr.py --tier full --job 'test-nilpy#src:test/test_nilpy_bytearray_unbound_and_subclass.npy' at b4104386ae9c393702223f151f8e29b902868140

Range

The named sha b4104386ae9c 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 b4104386ae9c, last good 11e0c581c80d, 4 commit(s) in range — the watcher narrows this by idle bisect; check tstate/TSTATE.md for the current range.

Log tail

pascal26:68: error: Nil Python: add overrides TPyList.add with a different result type, in a class laid out after its base was compiled (it has several bases, or derives from one that does) -- annotate both results with the same type
(tail)
pascal26:68: error: Nil Python: add overrides TPyList.add with a different result type, in a class laid out after its base was compiled (it has several bases, or derives from one that does) -- annotate both results with the same type
  near: ( list ) :   >>> def add ( 

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

Log

• 2026-09-19 — auto-closed by the borg watcher: test-nilpy#src:test/test_nilpy_bytearray_unbound_and_subclass.npy passes at ff2d50a2bde9 (tier full); it was red at b4104386ae9c. Reopening is by a fresh NEW-RED stub, since a second red is a second finding with its own range.