these 2 derivations will be built:
  /nix/store/87nhn0v986i1lakps271i5cimwy3100r-generate-dependency-diagram.drv
  /nix/store/q48wv3cigbz7jfh6x3zkiz05fsk6avpd-check-dependency-diagram.drv
error: Cannot build '/nix/store/87nhn0v986i1lakps271i5cimwy3100r-generate-dependency-diagram.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/i41lpdqhms1gdh49r0zd3r9wk1rzrz73-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/87nhn0v986i1lakps271i5cimwy3100r-generate-dependency-diagram.drv
error: Cannot build '/nix/store/q48wv3cigbz7jfh6x3zkiz05fsk6avpd-check-dependency-diagram.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/z55csnlffi2m5a7wr6wryx1wz55hr7a6-check-dependency-diagram