these 2 derivations will be built:
  /nix/store/ixs12mkhfvdikbfsd61wjsif8nrmvx1k-generate-dependency-diagram.drv
  /nix/store/kmszxjsx3rqh6hf3hhlqb1h96qq1jplq-check-dependency-diagram.drv
error: Cannot build '/nix/store/ixs12mkhfvdikbfsd61wjsif8nrmvx1k-generate-dependency-diagram.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ph1mx4iy3kvw97621nw7salf926dcs2h-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/ixs12mkhfvdikbfsd61wjsif8nrmvx1k-generate-dependency-diagram.drv
error: Cannot build '/nix/store/kmszxjsx3rqh6hf3hhlqb1h96qq1jplq-check-dependency-diagram.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/j4krhvqpmmggzvz7gk6b07x3vgddpvg6-check-dependency-diagram