these 11 derivations will be built:
  /nix/store/i5rvhvaj1rz6pmvkl6h3dydwgjr0c020-cargo-src-time-macros-0.2.31.drv
  /nix/store/31clpbqnpw05afhra210syrz5nc7764a-cargo-package-time-macros-0.2.31.drv
  /nix/store/618j2lfk0j7rlkz6swyh817cqig1dvlb-cargo-src-time-0.3.53.drv
  /nix/store/4n97bsf7k6c6sadwha8a4q87jxrlv47i-cargo-package-time-0.3.53.drv
  /nix/store/8a94g6j0z92yzs1w237w2acslw97wbzn-cargo-src-rand-0.10.2.drv
  /nix/store/9s5prf9qw0d0ks95blm4vfbjdvmvsqk1-cargo-package-rand-0.10.2.drv
  /nix/store/16v98j84ixi340vysp6pjgpkifl56s9l-vendor-registry.drv
  /nix/store/9zs0qjhjnvil50icvm9689y0w2wqihy1-source.drv
  /nix/store/vzvxhyasa63ywp85yf21zfrniba8sxvz-vendor-cargo-deps.drv
  /nix/store/hksgwiiy6zg2chcw1kh02x3l04aay2mw-tribuchet-deps-0.1.0.drv
  /nix/store/aqa5nv6iip4l6sbi05dh9wm37g6y9k89-tribuchet-0.1.0.drv