elastic-arm-a076b4ed: building xcdcccgglaydgfpvzaliqnza406iyzrl-source.drv
structuredAttrs is enabled

trying https://github.com/kubernetes/kubernetes/archive/refs/tags/v1.20.15.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0   0     0   0     0     0     0  --:--:-- --:--:-- --:--:--     0
100 33745k   0 33745k   0     0  4879k     0  --:--:--  0:00:06 --:--:--  5698k
unpacking source archive /build/download.tar.gz