these 2 derivations will be built:
  /nix/store/syx5x5w9cn5mfyhiflfvjinpbm7kn17k-generate-dependency-diagram.drv
  /nix/store/z3rz9vxa4n6r438l88gnd9hl3g20xs4i-check-dependency-diagram.drv
error: Cannot build '/nix/store/syx5x5w9cn5mfyhiflfvjinpbm7kn17k-generate-dependency-diagram.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/cv0xsl3fkicv4f4q2wpxp7fz32gddypq-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/syx5x5w9cn5mfyhiflfvjinpbm7kn17k-generate-dependency-diagram.drv
error: Cannot build '/nix/store/z3rz9vxa4n6r438l88gnd9hl3g20xs4i-check-dependency-diagram.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/373r51lip2l514000iq0i2nx89xqhq2n-check-dependency-diagram