this derivation will be built:
  /nix/store/bf5dm9jdwnzzh4fdja2dm8008k3899v8-treefmt-check.drv
building '/nix/store/bf5dm9jdwnzzh4fdja2dm8008k3899v8-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 2094 files
treefmt-check> emitted 558 files for processing
treefmt-check> formatted 558 files (1 changed) in 3.141s
treefmt-check>  M modules/checks/greptimedb-envelope.nix
treefmt-check> diff --git a/modules/checks/greptimedb-envelope.nix b/modules/checks/greptimedb-envelope.nix
treefmt-check> index 1e06643..b05e359 100644
treefmt-check> --- a/modules/checks/greptimedb-envelope.nix
treefmt-check> +++ b/modules/checks/greptimedb-envelope.nix
treefmt-check> @@ -22,9 +22,7 @@
treefmt-check>        # R8.2: magnetite's worker accounts are its omnigent workers
treefmt-check>        # (ADR-008: "magnetite's two worker accounts").
treefmt-check>        workerUsers = map (worker: worker.user) (
treefmt-check> -        lib.attrValues (
treefmt-check> -          lib.filterAttrs (_: worker: worker.enable) magnetite.services.omnigent-host.workers
treefmt-check> -        )
treefmt-check> +        lib.attrValues (lib.filterAttrs (_: worker: worker.enable) magnetite.services.omnigent-host.workers)
treefmt-check>        );
treefmt-check>  
treefmt-check>        # R8.2 credential-holder clause, as data: for each greptimedb-users
treefmt-check> @@ -47,7 +45,9 @@
treefmt-check>          loadCredentials: path:
treefmt-check>          lib.naturalSort (
treefmt-check>            lib.attrNames (
treefmt-check> -            lib.filterAttrs (_: entries: lib.any (entry: credentialSource entry == path) entries) loadCredentials
treefmt-check> +            lib.filterAttrs (
treefmt-check> +              _: entries: lib.any (entry: credentialSource entry == path) entries
treefmt-check> +            ) loadCredentials
treefmt-check>            )
treefmt-check>          );
treefmt-check>  
treefmt-check> @@ -183,9 +183,9 @@
treefmt-check>            settings:
treefmt-check>            settings
treefmt-check>            // {
treefmt-check> -            region_engine = map (engine: if engine ? mito then engine // { mito = f engine.mito; } else engine) (
treefmt-check> -              settings.region_engine or [ ]
treefmt-check> -            );
treefmt-check> +            region_engine = map (
treefmt-check> +              engine: if engine ? mito then engine // { mito = f engine.mito; } else engine
treefmt-check> +            ) (settings.region_engine or [ ]);
treefmt-check>            }
treefmt-check>          );
treefmt-check>  
treefmt-check> @@ -219,13 +219,26 @@
treefmt-check>          restartUnitsRemoved = {
treefmt-check>            clause = "usersRestartUnits";
treefmt-check>            apply =
treefmt-check> -            v: v // { usersFiles = v.usersFiles // { users = removeAttrs v.usersFiles.users [ "restartUnits" ]; }; };
treefmt-check> +            v:
treefmt-check> +            v
treefmt-check> +            // {
treefmt-check> +              usersFiles = v.usersFiles // {
treefmt-check> +                users = removeAttrs v.usersFiles.users [ "restartUnits" ];
treefmt-check> +              };
treefmt-check> +            };
treefmt-check>          };
treefmt-check>  
treefmt-check>          # R1.1
treefmt-check>          prereleasePackage = {
treefmt-check>            clause = "stableRelease";
treefmt-check> -          apply = v: v // { package = v.package.overrideAttrs (_: { version = "1.3.0-beta.2"; }); };
treefmt-check> +          apply =
treefmt-check> +            v:
treefmt-check> +            v
treefmt-check> +            // {
treefmt-check> +              package = v.package.overrideAttrs (_: {
treefmt-check> +                version = "1.3.0-beta.2";
treefmt-check> +              });
treefmt-check> +            };
treefmt-check>          };
treefmt-check>          pinnedNixpkgsPackage = {
treefmt-check>            clause = "embedsDashboard";
treefmt-check> @@ -250,7 +263,9 @@
treefmt-check>              v
treefmt-check>              // {
treefmt-check>                usersFiles = v.usersFiles // {
treefmt-check> -                collector-password = v.usersFiles.collector-password // { owner = builtins.head workerUsers; };
treefmt-check> +                collector-password = v.usersFiles.collector-password // {
treefmt-check> +                  owner = builtins.head workerUsers;
treefmt-check> +                };
treefmt-check>                };
treefmt-check>              };
treefmt-check>          };
treefmt-check> @@ -267,7 +282,9 @@
treefmt-check>              v
treefmt-check>              // {
treefmt-check>                loadCredentials = v.loadCredentials // {
treefmt-check> -                nixbot = v.loadCredentials.nixbot ++ [ "admin-password:${usersGenerator.files.admin-password.path}" ];
treefmt-check> +                nixbot = v.loadCredentials.nixbot ++ [
treefmt-check> +                  "admin-password:${usersGenerator.files.admin-password.path}"
treefmt-check> +                ];
treefmt-check>                };
treefmt-check>              };
treefmt-check>          };
error: Cannot build '/nix/store/bf5dm9jdwnzzh4fdja2dm8008k3899v8-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/28cy5qag2d5gksjxgy39mh04g16164wy-treefmt-check
       Last 25 log lines:
       >          };
       >          pinnedNixpkgsPackage = {
       >            clause = "embedsDashboard";
       > @@ -250,7 +263,9 @@
       >              v
       >              // {
       >                usersFiles = v.usersFiles // {
       > -                collector-password = v.usersFiles.collector-password // { owner = builtins.head workerUsers; };
       > +                collector-password = v.usersFiles.collector-password // {
       > +                  owner = builtins.head workerUsers;
       > +                };
       >                };
       >              };
       >          };
       > @@ -267,7 +282,9 @@
       >              v
       >              // {
       >                loadCredentials = v.loadCredentials // {
       > -                nixbot = v.loadCredentials.nixbot ++ [ "admin-password:${usersGenerator.files.admin-password.path}" ];
       > +                nixbot = v.loadCredentials.nixbot ++ [
       > +                  "admin-password:${usersGenerator.files.admin-password.path}"
       > +                ];
       >                };
       >              };
       >          };
       For full logs, run:
         nix log /nix/store/bf5dm9jdwnzzh4fdja2dm8008k3899v8-treefmt-check.drv