this derivation will be built:
  /nix/store/9bc9jrarpr7bsrn0z2zh3x6ljsx3mqvf-treefmt-check.drv
warning: ignoring the client-specified setting 'store', because it is a restricted setting and you are not a trusted user
error: Cannot build '/nix/store/9bc9jrarpr7bsrn0z2zh3x6ljsx3mqvf-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/cqsnx2s39i06lw70rh03xj68djwk5qcj-treefmt-check
       Last 18 log lines:
       > treefmt v2.6.0traversed 612 files
       > emitted 399 files for processing
       > formatted 399 files (1 changed) in 892ms
       >  M packages/spaces-integration-gateway/gateway-core.ts
       > diff --git a/packages/spaces-integration-gateway/gateway-core.ts b/packages/spaces-integration-gateway/gateway-core.ts
       > index 2fac038..94e9c0d 100644
       > --- a/packages/spaces-integration-gateway/gateway-core.ts
       > +++ b/packages/spaces-integration-gateway/gateway-core.ts
       > @@ -113,8 +113,7 @@ export interface McpStep {
       >  }
       >  
       >  export type McpExchangeResult =
       > -  | { ok: true; reply: Record<string, unknown> }
       > -  | { ok: false; reason: string };
       > +  { ok: true; reply: Record<string, unknown> } | { ok: false; reason: string };
       >  
       >  /**
       >   * One MCP exchange on a fresh unix-socket connection, the "MCP wire". It speaks
       For full logs, run:
         nix log /nix/store/9bc9jrarpr7bsrn0z2zh3x6ljsx3mqvf-treefmt-check.drv