these 4 derivations will be built:
  /nix/store/bnc1qs91ci93mq3rqg1cwsy6qc8k2x3b-iets-static-x86_64-unknown-linux-musl-0.2.0.drv
  /nix/store/va6adbs8qj04k5l2l3x8jdpkfrac96va-iets-static-aarch64-unknown-linux-musl-0.2.0.drv
  /nix/store/hh6y0ljyrman0hvakxdcdddccfd7ny9c-iets-release-0.2.0.drv
  /nix/store/8n167v5ysjrppwh9zy2b8n1pa5z1sfbf-inputDerivation-effect-release.drv
building '/nix/store/va6adbs8qj04k5l2l3x8jdpkfrac96va-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'...
building '/nix/store/bnc1qs91ci93mq3rqg1cwsy6qc8k2x3b-iets-static-x86_64-unknown-linux-musl-0.2.0.drv'...
copying 1 paths...
copying path '/nix/store/9dnhhzc84w69g50yfcgkh1ryaqh5zb64-source' to 'grpc://farm.numtide.com:50051'...
copying 1 paths to 'farm.numtide.com:50051'...
copying path '/nix/store/va6adbs8qj04k5l2l3x8jdpkfrac96va-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' to 'farm.numtide.com:50051'...
building '/nix/store/va6adbs8qj04k5l2l3x8jdpkfrac96va-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' on farm.numtide.com:50051...
copying 1 paths...
copying path '/nix/store/2fkff7q3g97hdpy4z4d519ka6k82r2cw-iets-static-aarch64-unknown-linux-musl-0.2.0' from 'grpc://farm.numtide.com:50051'...
building '/nix/store/hh6y0ljyrman0hvakxdcdddccfd7ny9c-iets-release-0.2.0.drv'...
building '/nix/store/8n167v5ysjrppwh9zy2b8n1pa5z1sfbf-inputDerivation-effect-release.drv'...