[teamleaderleo]

feat-cmux-next does not compile acpmux. The error is E0425: cannot find value result_line in this scope at cmux-tui/crates/acpmux/src/hub/bg_tasks.rs:160, and it breaks the fleet's cmux-tui client build, so DEV builds and captures fail at base.

Cause: two merges crossed. #33317 added result_line to bg_start and to bg_run::Spec. #33779 moved the spawn into bg_start_with_id, but that function never took result_line. This PR passes it through. Workflow activities start with result_line: false, as before.

Observed / Not run

• Red on base: two fleet DEV builds (cmux-ci jobs 0ebdb48b2ed02a402df7571a and db989754dd4d6d2377916d77) fail with E0425 in acpmux.
• Green on this head (fleet): cargo check -p acpmux --all-targets, cargo clippy -p acpmux --all-targets -- -D warnings, and cargo test -p acpmux bg_ (15 passed).

Changelog

none

Agent session: agent session

🤖 Generated with Claude Code

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Summary by cubic

Fixes acpmux compilation on feat-cmux-next by passing result_line through bg_start_with_id, which previously caused an E0425 error and broke the fleet's cmux-tui client build.

• Two merges crossed: #33317 added result_line to bg_start and the spawn spec, while #33779 moved the spawn into bg_start_with_id without accepting result_line.
• Workflow activities now pass result_line: false, matching previous behavior.

^{Written for commit 124e4c1. Summary will update on new commits.}

[github-actions]

cmux status _{(one comment, edited in place; each line is updated by the job that owns it)}

Review 124e4c1: HQ feed card · gallery before/after runs · checks

App of this head (app.zip, kept 1 day)

gh workflow run reload-build.yml -R manaflow-ai/cmux --ref feat-cmux-next -f tag=pr34064 -f ref=acpmux-bg-start-result-line -f platform=macos -f backend_mode=local

[teamleaderleo]

Owned by an agent session · session

[teamleaderleo]

Review (subagent claude-opus-5-5 medium): SHIP at 124e4c1

Checked every caller of bg_start_with_id in cmux-tui/crates/acpmux (only bg_start and the workflow activity) and its one bg_run::Spec construction: result_line now goes from the RPC's resultLine param through bg_start and bg_start_with_id into Spec, and workflow activities pass false, the same as before #33779. The too_many_arguments allow is needed for clippy -D warnings and is harmless.

Follow-ups: none

[teamleaderleo]

Review (codex gpt-6.1-sol xhigh, next-review, since=20261103T171449Z): SHIP at 124e4c1

SHIP at 124e4c1

Visual verdict: no images; Leo tries the build

Checked all callers and result_line propagation through the runner; no correctness findings. Cargo checks could not be rerun because Rust tooling is unavailable.

Follow-ups: none

[teamleaderleo]

Duplicate of #34053 (merged as e3bb5b2), closing.