this derivation will be built:
  /nix/store/vz35vrhhkcp2nyv7mrfw1zbz85dy9bli-treefmt-check.drv
building '/nix/store/vz35vrhhkcp2nyv7mrfw1zbz85dy9bli-treefmt-check.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/vz35vrhhkcp2nyv7mrfw1zbz85dy9bli-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 731 files
treefmt-check> emitted 317 files for processing
treefmt-check> formatted 317 files (1 changed) in 421ms
treefmt-check>  M crates/tincd/tests/security.rs
treefmt-check> diff --git a/crates/tincd/tests/security.rs b/crates/tincd/tests/security.rs
treefmt-check> index 7c3f16e..18359a1 100644
treefmt-check> --- a/crates/tincd/tests/security.rs
treefmt-check> +++ b/crates/tincd/tests/security.rs
treefmt-check> @@ -323,7 +323,6 @@ fn id_timeout_half_open_survives() {
treefmt-check>      let _ = child.wait();
treefmt-check>  }
treefmt-check>  
treefmt-check> -
treefmt-check>  // Adversarial-input regression: malformed protocol lines after ACK.
treefmt-check>  //
treefmt-check>  // `security.py` and the tests above probe the *pre-auth* gates
error: build of '/nix/store/vz35vrhhkcp2nyv7mrfw1zbz85dy9bli-treefmt-check.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/vz35vrhhkcp2nyv7mrfw1zbz85dy9bli-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/qw629s9q6mlyfiipbaclmp7idyxzba1v-treefmt-check
       Last 16 log lines:
       > treefmt v2.5.0traversed 731 files
       > emitted 317 files for processing
       > formatted 317 files (1 changed) in 421ms
       >  M crates/tincd/tests/security.rs
       > diff --git a/crates/tincd/tests/security.rs b/crates/tincd/tests/security.rs
       > index 7c3f16e..18359a1 100644
       > --- a/crates/tincd/tests/security.rs
       > +++ b/crates/tincd/tests/security.rs
       > @@ -323,7 +323,6 @@ fn id_timeout_half_open_survives() {
       >      let _ = child.wait();
       >  }
       >  
       > -
       >  // Adversarial-input regression: malformed protocol lines after ACK.
       >  //
       >  // `security.py` and the tests above probe the *pre-auth* gates
       For full logs, run:
         nix log /nix/store/vz35vrhhkcp2nyv7mrfw1zbz85dy9bli-treefmt-check.drv
error: Cannot build '/nix/store/vz35vrhhkcp2nyv7mrfw1zbz85dy9bli-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/qw629s9q6mlyfiipbaclmp7idyxzba1v-treefmt-check