these 4 derivations will be built:
  /nix/store/hdclns9xx3p5jr7r4psbxgjw3hggbfj1-iets-static-aarch64-unknown-linux-musl-0.2.0.drv
  /nix/store/rmry7mvzswyv8fqqv0260sr5m4fd868g-iets-static-x86_64-unknown-linux-musl-0.2.0.drv
  /nix/store/a8ibcxl9c43nyvwjn6fr3v394z854q71-iets-release-0.2.0.drv
  /nix/store/6zy6c3lzzkkl6y4x32z638zdmqlazm4l-inputDerivation-effect-release.drv
building '/nix/store/hdclns9xx3p5jr7r4psbxgjw3hggbfj1-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'...
building '/nix/store/rmry7mvzswyv8fqqv0260sr5m4fd868g-iets-static-x86_64-unknown-linux-musl-0.2.0.drv'...
copying 1 paths...
copying path '/nix/store/gif024q18l2jhlxp2g1cz2z6pi7bgp28-source' to 'grpc://farm.numtide.com:50051'...
copying 1 paths to 'farm.numtide.com:50051'...
copying path '/nix/store/hdclns9xx3p5jr7r4psbxgjw3hggbfj1-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' to 'farm.numtide.com:50051'...
building '/nix/store/hdclns9xx3p5jr7r4psbxgjw3hggbfj1-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' on farm.numtide.com:50051...
copying 1 paths...
copying path '/nix/store/yfsac7dhmyjdg59798q82pfy42yyzqfz-iets-static-aarch64-unknown-linux-musl-0.2.0' from 'grpc://farm.numtide.com:50051'...
building '/nix/store/a8ibcxl9c43nyvwjn6fr3v394z854q71-iets-release-0.2.0.drv'...
building '/nix/store/6zy6c3lzzkkl6y4x32z638zdmqlazm4l-inputDerivation-effect-release.drv'...