these 2 derivations will be built:
  /nix/store/55b7z8crvkvnpvahr1ddmpqdl4pnmr3w-generate-dependency-diagram.drv
  /nix/store/xp1jgqijx71j5aqqvknrf6f54pia9nx8-check-dependency-diagram.drv
error: Cannot build '/nix/store/55b7z8crvkvnpvahr1ddmpqdl4pnmr3w-generate-dependency-diagram.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/v2kkap9v6cl60n6d7dyy8kjcg7j8wikn-generate-dependency-diagram
       Last 2 log lines:
       > tribuchet: building on jamie
       > Store crate(s) not categorized: store-gc. Add to STORE_PURE or STORE_IMPURE in /nix/store/i36v84nbskp43x17qcnkjavis3pdsx52-dependency-diagram.py.
       For full logs, run:
         nix log /nix/store/55b7z8crvkvnpvahr1ddmpqdl4pnmr3w-generate-dependency-diagram.drv
error: Cannot build '/nix/store/xp1jgqijx71j5aqqvknrf6f54pia9nx8-check-dependency-diagram.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/y5zh1akpijk4zcyfvs39c6g6d30s39l7-check-dependency-diagram