this derivation will be built:
  /nix/store/82q6fgk49aazsfs6x9s4r8hri71z0s5g-interpolate-conformance.drv
building '/nix/store/82q6fgk49aazsfs6x9s4r8hri71z0s5g-interpolate-conformance.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/82q6fgk49aazsfs6x9s4r8hri71z0s5g-interpolate-conformance.drv' on farm.numtide.com:50051
interpolate-conformance> elastic-arm-a30baf54: building 82q6fgk49aazsfs6x9s4r8hri71z0s5g-interpolate-conformance.drv
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected