these 2 derivations will be built:
  /nix/store/hxmdwkskvjfpwq0j1zw9mnn6jldx30b5-source.drv
  /nix/store/222i6n3ghhzyivh7ij62zkx2fjii67v6-nix-shell.drv
building '/nix/store/l985dvf9qycamcqr63x65i7768nmh4as-source.drv'
source> tribuchet: building on jamie
source> 
source> trying https://github.com/zerotier/ZeroTierOne/archive/master.tar.gz
source>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
source>                                  Dload  Upload   Total   Spent    Left  Speed
source>   0     0   0     0   0     0     0     0  --:--:-- --:--:-- --:--:--     0
source> 100 10634k 100 10634k   0     0 14292k     0  --:--:-- --:--:-- --:--:--  99.0M
source> unpacking source archive /build/download.tar.gz
error: hash mismatch in fixed-output derivation '/nix/store/l985dvf9qycamcqr63x65i7768nmh4as-source.drv':
         specified: sha256-fcGVoV0Vd8TrYDE730W9GBHcVjTXB3oGqWzJRErBBzk=
            got:    sha256-uWORGGTafVZaTQV6a9ryETtYba0XKRpgti/WPJpIM6Q=
error: build of resolved derivation '/nix/store/l985dvf9qycamcqr63x65i7768nmh4as-source.drv' failed
error: Cannot build '/nix/store/222i6n3ghhzyivh7ij62zkx2fjii67v6-nix-shell.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/z7sldmfgs158lamzm8nh3dw82kjklv3y-nix-shell