this derivation will be built:
  /nix/store/l0sf1bqqrh7gh02md4pgpli05hylkjib-treefmt-check.drv
building '/nix/store/l0sf1bqqrh7gh02md4pgpli05hylkjib-treefmt-check.drv'
treefmt-check> tribuchet: building on eliza
treefmt-check> treefmt v2.5.0traversed 728 files
treefmt-check> emitted 315 files for processing
treefmt-check> formatted 315 files (1 changed) in 867ms
treefmt-check>  M flake.nix
treefmt-check> diff --git a/flake.nix b/flake.nix
treefmt-check> index 64a5f07..f340f30 100644
treefmt-check> --- a/flake.nix
treefmt-check> +++ b/flake.nix
treefmt-check> @@ -44,7 +44,8 @@
treefmt-check>      in
treefmt-check>      {
treefmt-check>        packages = eachSystem (
treefmt-check> -        system: pkgs: {
treefmt-check> +        system: pkgs:
treefmt-check> +        {
treefmt-check>            default = self.packages.${system}.tincd;
treefmt-check>            kat-vectors = pkgs.callPackage ./nix/kat-vectors.nix { };
treefmt-check>            kat-graph = pkgs.callPackage ./nix/kat-graph.nix { };
error: Cannot build '/nix/store/l0sf1bqqrh7gh02md4pgpli05hylkjib-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/lgxhnq91zspm7qiac9f1lir2swphfgh6-treefmt-check
       Last 19 log lines:
       > tribuchet: building on eliza
       > treefmt v2.5.0traversed 728 files
       > emitted 315 files for processing
       > formatted 315 files (1 changed) in 867ms
       >  M flake.nix
       > diff --git a/flake.nix b/flake.nix
       > index 64a5f07..f340f30 100644
       > --- a/flake.nix
       > +++ b/flake.nix
       > @@ -44,7 +44,8 @@
       >      in
       >      {
       >        packages = eachSystem (
       > -        system: pkgs: {
       > +        system: pkgs:
       > +        {
       >            default = self.packages.${system}.tincd;
       >            kat-vectors = pkgs.callPackage ./nix/kat-vectors.nix { };
       >            kat-graph = pkgs.callPackage ./nix/kat-graph.nix { };
       For full logs, run:
         nix log /nix/store/l0sf1bqqrh7gh02md4pgpli05hylkjib-treefmt-check.drv