these 4 derivations will be built:
  /nix/store/34lkk12x8vsb67ilfwppgzbm4s2m6m5b-iets-static-x86_64-unknown-linux-musl-0.2.0.drv
  /nix/store/3r8rfm3brchm6w4s644qr41h0x25kab9-iets-static-aarch64-unknown-linux-musl-0.2.0.drv
  /nix/store/zxs7ydhllbygnrnhmd18b2hdv3ncfwrp-iets-release-0.2.0.drv
  /nix/store/w36kf0x831dndwdkaa9zkjm8k5qzbw52-inputDerivation-effect-release.drv
building '/nix/store/3r8rfm3brchm6w4s644qr41h0x25kab9-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/34lkk12x8vsb67ilfwppgzbm4s2m6m5b-iets-static-x86_64-unknown-linux-musl-0.2.0.drv'...
copying 1 paths...
copying path '/nix/store/ryaj8jdbb3h2dfmvbpr7hfmj08aazw65-source' to 'grpc://farm.numtide.com:50051'...
copying 1 paths to 'farm.numtide.com:50051'...
copying path '/nix/store/3r8rfm3brchm6w4s644qr41h0x25kab9-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' to 'farm.numtide.com:50051'...
building '/nix/store/3r8rfm3brchm6w4s644qr41h0x25kab9-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' on farm.numtide.com:50051...
copying 1 paths...
copying path '/nix/store/dfx6aghaxwm69bx8k0aydyzv7pr9xd5g-iets-static-aarch64-unknown-linux-musl-0.2.0' from 'grpc://farm.numtide.com:50051'...
building '/nix/store/zxs7ydhllbygnrnhmd18b2hdv3ncfwrp-iets-release-0.2.0.drv'...
building '/nix/store/w36kf0x831dndwdkaa9zkjm8k5qzbw52-inputDerivation-effect-release.drv'...