this derivation will be built:
  /nix/store/5bwf810zgiisrlbi7rdw2vw7w4ykxw21-helvetica-neue-lt-std-2014.08.16.drv
building '/nix/store/5vscmc68nvg5wvx0gy3zpr5lh7mx55hc-helvetica-neue-lt-std-2014.08.16.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=23&system=aarch64-linux'
building '/nix/store/5vscmc68nvg5wvx0gy3zpr5lh7mx55hc-helvetica-neue-lt-std-2014.08.16.drv' on farm.numtide.com:50051
helvetica-neue-lt-std-2014.08.16> elastic-arm-4e524f5e: building 5vscmc68nvg5wvx0gy3zpr5lh7mx55hc-helvetica-neue-lt-std-2014.08.16.drv
helvetica-neue-lt-std-2014.08.16> 
helvetica-neue-lt-std-2014.08.16> trying https://web.archive.org/web/20190823153624/http://ephifonts.com/downloads/helvetica-neue-lt-std.zip
helvetica-neue-lt-std-2014.08.16>   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
helvetica-neue-lt-std-2014.08.16>                                  Dload  Upload   Total   Spent    Left  Speed
helvetica-neue-lt-std-2014.08.16>   0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
helvetica-neue-lt-std-2014.08.16> 100 1084k  100 1084k    0     0   443k      0  0:00:02  0:00:02 --:--:-- 1317k
helvetica-neue-lt-std-2014.08.16> unpacking source archive /build/helvetica-neue-lt-std.zip

upload niks3: ok