these 4 derivations will be built:
  /nix/store/dwf8kr85x22axnqqidkyc2cf015k0cld-iets-static-aarch64-unknown-linux-musl-0.2.0.drv
  /nix/store/h8fhbh15fn9cc3gix0b61a0g9cccjh9m-iets-static-x86_64-unknown-linux-musl-0.2.0.drv
  /nix/store/ppr60grddmfvikjvj66lp7qby8x5msar-iets-release-0.2.0.drv
  /nix/store/cks9jbwzvvzddhzjl8dzirdg8ywbnpil-inputDerivation-effect-release.drv
building '/nix/store/dwf8kr85x22axnqqidkyc2cf015k0cld-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/h8fhbh15fn9cc3gix0b61a0g9cccjh9m-iets-static-x86_64-unknown-linux-musl-0.2.0.drv'...
copying 1 paths...
copying path '/nix/store/xhxwgdpnqgbmdyb94vqfxz4925v4r0y9-source' to 'grpc://farm.numtide.com:50051'...
copying 1 paths to 'farm.numtide.com:50051'...
copying path '/nix/store/dwf8kr85x22axnqqidkyc2cf015k0cld-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' to 'farm.numtide.com:50051'...
building '/nix/store/dwf8kr85x22axnqqidkyc2cf015k0cld-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' on farm.numtide.com:50051...
copying 1 paths...
copying path '/nix/store/qwm3sh01fnr484v8sx5w75g03m7c7z1h-iets-static-aarch64-unknown-linux-musl-0.2.0' from 'grpc://farm.numtide.com:50051'...
building '/nix/store/ppr60grddmfvikjvj66lp7qby8x5msar-iets-release-0.2.0.drv'...
building '/nix/store/cks9jbwzvvzddhzjl8dzirdg8ywbnpil-inputDerivation-effect-release.drv'...