these 4 derivations will be built:
  /nix/store/0n70xfvnd4xlcpcyahakr3ibfvj8lz3p-iets-static-aarch64-unknown-linux-musl-0.2.0.drv
  /nix/store/r47xxsiifnkgxpcz4j6d5z6w2sc19n33-iets-static-x86_64-unknown-linux-musl-0.2.0.drv
  /nix/store/mqfhpdv2rwaaanpkzrxy7132k1n0iny7-iets-release-0.2.0.drv
  /nix/store/7scc6brf74xq4qlmbrls5w5b33qnl54g-inputDerivation-effect-release.drv
building '/nix/store/0n70xfvnd4xlcpcyahakr3ibfvj8lz3p-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'...
building '/nix/store/r47xxsiifnkgxpcz4j6d5z6w2sc19n33-iets-static-x86_64-unknown-linux-musl-0.2.0.drv'...
copying 1 paths...
copying path '/nix/store/3xn6qn42qk7ip7qrkz9nqa4gmzc72i0a-source' to 'grpc://farm.numtide.com:50051'...
copying 1 paths to 'farm.numtide.com:50051'...
copying path '/nix/store/0n70xfvnd4xlcpcyahakr3ibfvj8lz3p-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' to 'farm.numtide.com:50051'...
building '/nix/store/0n70xfvnd4xlcpcyahakr3ibfvj8lz3p-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' on farm.numtide.com:50051...
copying 1 paths...
copying path '/nix/store/cz5rc8hs89firppslk49zafrp6w2lndk-iets-static-aarch64-unknown-linux-musl-0.2.0' from 'grpc://farm.numtide.com:50051'...
building '/nix/store/mqfhpdv2rwaaanpkzrxy7132k1n0iny7-iets-release-0.2.0.drv'...
building '/nix/store/7scc6brf74xq4qlmbrls5w5b33qnl54g-inputDerivation-effect-release.drv'...