this derivation will be built:
  /nix/store/ifmhrrv93i9jid2dk493jf75b7rshf5h-treefmt-check.drv
building '/nix/store/ifmhrrv93i9jid2dk493jf75b7rshf5h-treefmt-check.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/ifmhrrv93i9jid2dk493jf75b7rshf5h-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 64 files
treefmt-check> emitted 54 files for processing
treefmt-check> formatted 54 files (1 changed) in 128ms
treefmt-check>  M tests-functional/test_eval.py
treefmt-check> diff --git a/tests-functional/test_eval.py b/tests-functional/test_eval.py
treefmt-check> index 336a279..20962f6 100644
treefmt-check> --- a/tests-functional/test_eval.py
treefmt-check> +++ b/tests-functional/test_eval.py
treefmt-check> @@ -145,6 +145,8 @@ def test_closed_stdout_aborts() -> None:
treefmt-check>      _, stderr = proc.communicate(timeout=60)
treefmt-check>      assert proc.returncode != 0
treefmt-check>      assert "stdout" in stderr
treefmt-check> +
treefmt-check> +
treefmt-check>  def test_worker_exits_cleanly_when_collector_disappears() -> None:
treefmt-check>      with TemporaryDirectory() as tempdir:
treefmt-check>          cfg = Path(tempdir) / "cfg"
error: build of '/nix/store/ifmhrrv93i9jid2dk493jf75b7rshf5h-treefmt-check.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/ifmhrrv93i9jid2dk493jf75b7rshf5h-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/0a7sfjgd9qdbvxc58fs6ic7r2avv65bj-treefmt-check
       Last 17 log lines:
       > treefmt v2.5.0traversed 64 files
       > emitted 54 files for processing
       > formatted 54 files (1 changed) in 128ms
       >  M tests-functional/test_eval.py
       > diff --git a/tests-functional/test_eval.py b/tests-functional/test_eval.py
       > index 336a279..20962f6 100644
       > --- a/tests-functional/test_eval.py
       > +++ b/tests-functional/test_eval.py
       > @@ -145,6 +145,8 @@ def test_closed_stdout_aborts() -> None:
       >      _, stderr = proc.communicate(timeout=60)
       >      assert proc.returncode != 0
       >      assert "stdout" in stderr
       > +
       > +
       >  def test_worker_exits_cleanly_when_collector_disappears() -> None:
       >      with TemporaryDirectory() as tempdir:
       >          cfg = Path(tempdir) / "cfg"
       For full logs, run:
         nix log /nix/store/ifmhrrv93i9jid2dk493jf75b7rshf5h-treefmt-check.drv
error: Cannot build '/nix/store/ifmhrrv93i9jid2dk493jf75b7rshf5h-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/0a7sfjgd9qdbvxc58fs6ic7r2avv65bj-treefmt-check