this derivation will be built:
  /nix/store/4g81a25ppcmhg1iil2ggdw0mwsxmvc80-nix-shell.drv
this path will be fetched (2.3 MiB download, 6.2 MiB unpacked):
  /nix/store/0bijdnipw09bsvggaigv4rcdf2p03iyn-perf-linux-7.3.1
building '/nix/store/4g81a25ppcmhg1iil2ggdw0mwsxmvc80-nix-shell.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/4g81a25ppcmhg1iil2ggdw0mwsxmvc80-nix-shell.drv' on farm.numtide.com:50051
nix-shell> elastic-arm-2c14001d: building 4g81a25ppcmhg1iil2ggdw0mwsxmvc80-nix-shell.drv
nix-shell> Running phase: buildPhase