these 2 derivations will be built:
  /nix/store/nn29zbj4348y4dqxa832rp6s7nyyx2w5-generate-dependency-diagram.drv
  /nix/store/i1hff0npqwvdhzqcij866xb2hqmh5c0i-check-dependency-diagram.drv
error: Cannot build '/nix/store/nn29zbj4348y4dqxa832rp6s7nyyx2w5-generate-dependency-diagram.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/zr9v16vi2205i89xg959j3yd1ng084l0-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/nn29zbj4348y4dqxa832rp6s7nyyx2w5-generate-dependency-diagram.drv
error: Cannot build '/nix/store/i1hff0npqwvdhzqcij866xb2hqmh5c0i-check-dependency-diagram.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/22isnkbcqh1441mlsi5638fqcwjb81h3-check-dependency-diagram