these 2 derivations will be built:
  /nix/store/yc0a66s0vq52zad6s9nvv2pszkhhn6zw-generate-dependency-diagram.drv
  /nix/store/ypdsdnpx0v17z8rahzx1bp26ks45s6d7-check-dependency-diagram.drv
error: Cannot build '/nix/store/yc0a66s0vq52zad6s9nvv2pszkhhn6zw-generate-dependency-diagram.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/gji89aj1bwqfl1v3sdv3iin7mv9px7p8-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/yc0a66s0vq52zad6s9nvv2pszkhhn6zw-generate-dependency-diagram.drv
error: Cannot build '/nix/store/ypdsdnpx0v17z8rahzx1bp26ks45s6d7-check-dependency-diagram.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/la0b7rcrvy111q47x0gnl5z68l6f9a74-check-dependency-diagram