these 4 derivations will be built:
  /nix/store/sqm0ydrp6bm1fgrymz4b63i03xkb9w58-crate-rand-0.10.2.tar.gz.drv
  /nix/store/vsfkmp1a3kxl943dz570j6ff6j0wcsbi-rand-0.10.2.drv
  /nix/store/m476n73s0dc0aczmpw4agqll9a97yidi-cargo-vendor-dir.drv
  /nix/store/i04305dk14gf706gzifw6giqxi2m0sif-fast-nix-gc-0.1.0.drv
building '/nix/store/9vnd69rnlf90lxwrdkcvzsv8if9495rz-crate-rand-0.10.2.tar.gz.drv'
crate-rand-0.10.2.tar.gz> tribuchet: building on jamie
crate-rand-0.10.2.tar.gz> structuredAttrs is enabled
crate-rand-0.10.2.tar.gz> 
crate-rand-0.10.2.tar.gz> trying https://static.crates.io/crates/rand/0.10.2/download
crate-rand-0.10.2.tar.gz> curl: (6) Could not resolve host: static.crates.io
crate-rand-0.10.2.tar.gz> Warning: Problem : timeout. Retrying in 1 second. 3 retries left.
crate-rand-0.10.2.tar.gz> curl: (6) Could not resolve host: static.crates.io
crate-rand-0.10.2.tar.gz> Warning: Problem : timeout. Retrying in 2 seconds. 2 retries left.
crate-rand-0.10.2.tar.gz> curl: (6) Could not resolve host: static.crates.io
crate-rand-0.10.2.tar.gz> Warning: Problem : timeout. Retrying in 4 seconds. 1 retry left.
crate-rand-0.10.2.tar.gz> curl: (6) Could not resolve host: static.crates.io
crate-rand-0.10.2.tar.gz> error checking the existence of https://tarballs.nixos.org/sha256/c7f5fa3a058cd35567ef9bfa5e75732bee0f9e4c55fa90477bef2dfcdbc4be80:
crate-rand-0.10.2.tar.gz> curl: (6) Could not resolve host: tarballs.nixos.org
crate-rand-0.10.2.tar.gz> error: cannot download crate-rand-0.10.2.tar.gz from any mirror
error: Cannot build '/nix/store/9vnd69rnlf90lxwrdkcvzsv8if9495rz-crate-rand-0.10.2.tar.gz.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/m3xk5iwmxm7h5k82g7f6kxy3gw8lwdz8-crate-rand-0.10.2.tar.gz
       Last 14 log lines:
       > tribuchet: building on jamie
       > structuredAttrs is enabled
       >
       > trying https://static.crates.io/crates/rand/0.10.2/download
       > curl: (6) Could not resolve host: static.crates.io
       > Warning: Problem : timeout. Retrying in 1 second. 3 retries left.
       > curl: (6) Could not resolve host: static.crates.io
       > Warning: Problem : timeout. Retrying in 2 seconds. 2 retries left.
       > curl: (6) Could not resolve host: static.crates.io
       > Warning: Problem : timeout. Retrying in 4 seconds. 1 retry left.
       > curl: (6) Could not resolve host: static.crates.io
       > error checking the existence of https://tarballs.nixos.org/sha256/c7f5fa3a058cd35567ef9bfa5e75732bee0f9e4c55fa90477bef2dfcdbc4be80:
       > curl: (6) Could not resolve host: tarballs.nixos.org
       > error: cannot download crate-rand-0.10.2.tar.gz from any mirror
       For full logs, run:
         nix log /nix/store/9vnd69rnlf90lxwrdkcvzsv8if9495rz-crate-rand-0.10.2.tar.gz.drv
error: build of resolved derivation '/nix/store/9vnd69rnlf90lxwrdkcvzsv8if9495rz-crate-rand-0.10.2.tar.gz.drv' failed
error: Cannot build '/nix/store/vsfkmp1a3kxl943dz570j6ff6j0wcsbi-rand-0.10.2.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/g33x5wd6j99m2kpxvh9d6di3yiqdhnq1-rand-0.10.2
error: Cannot build '/nix/store/m476n73s0dc0aczmpw4agqll9a97yidi-cargo-vendor-dir.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/7z83v1gi56129a5i46ca7n64sjdn6y8j-cargo-vendor-dir
error: Cannot build '/nix/store/i04305dk14gf706gzifw6giqxi2m0sif-fast-nix-gc-0.1.0.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/hmyl3qfcp7sv6gg77v7whj8906ra0fsb-fast-nix-gc-0.1.0