W8 lane retire — todlando, 2026-09-25. feat/332-surfaces landed as main 1aecaa95 (doyle ff from 75fc889a, PR #280, run 36097457661 6/6).

POOL: .worktrees/w8-surfaces/target (the worktree's own default target).
Release: prebuilt xtask (scratchpad copy of main's target/debug/xtask.exe) `pool-release --pool target` -> "pool target released", rc 0.
Processes running FROM the pool before teardown: 0.

WRITER CENSUS, read BEFORE rm (05:28:39Z and again 05:31:35Z): rust-analyzer.exe 37184, rust-analyzer.exe 50072 at 05:28:39Z;
  no cargo, rustc, cargo-nextest, link or Runner.Worker at either read, nor at the after-read 05:31:52Z.
OUTBOUND: Get-Item -Force target -> Directory, LinkType empty (a real dir, not a junction).
INBOUND: 0 reparse points under .worktrees or the project root targeting w8-surfaces.

THREE NUMBERS (measured by 05:31:21Z, before rm):
  apparent  (du -sb --apparent-size): 69,381,558,092 B
  allocated (du -sB1):                69,473,563,648 B
  escaped hard links (per-inode):     0 inodes, 0 B
  expected reclaim = 69,473,563,648 B

FREE SPACE (C:):
  before 05:31:35Z: 60,606,783,488 B
  rm -rf target rc 0; target absent
  after  05:31:52Z: 130,074,193,920 B
  delta: 69,467,410,432 B; gap vs expected: 6,153,216 B LESS freed (~0.009%).
  UNEXPLAINED, no mechanism assigned (no writer in the census).

WORKTREE: `git worktree remove .worktrees/w8-surfaces` from the project root, rc 0; prune; the dir is absent and `git worktree list`
  has no w8-surfaces. The session cwd was moved to the project root first, so nothing pinned it this time.

LANE NOTES: the pool reached 69 GB (vs W10's 21.7 GB) — nextest + clippy all-targets across spt/spt-daemon/spt-net/spt-runtime
  plus the two HEAVY e2es. One nextest leg (1 test, 3.09 s, no compile) overlapped #279's Windows unit leg by ~5 s before doyle's
  hold landed; that leg passed.