these 2 derivations will be built:
  /nix/store/14hr3pal27wr8pvzahjvn7mzydzik08x-broken-input.drv
  /nix/store/8jz4g19dyllr26pgjgfy0qzr91gd7pwb-inputDerivation-ping.drv
building '/nix/store/14hr3pal27wr8pvzahjvn7mzydzik08x-broken-input.drv'...
error: Cannot build '/nix/store/14hr3pal27wr8pvzahjvn7mzydzik08x-broken-input.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/7ya4zyi7ld8na6q3gj3qdkkqx36mqf3y-broken-input
       Last 1 log lines:
       > tribuchet: building on jamie
       For full logs, run:
         nix log /nix/store/14hr3pal27wr8pvzahjvn7mzydzik08x-broken-input.drv
error: Cannot build '/nix/store/8jz4g19dyllr26pgjgfy0qzr91gd7pwb-inputDerivation-ping.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/bb9cp0d5715l0kmvmpbq2zmfvric1y7z-inputDerivation-ping
error: nix failed with exit code 1