these 4 derivations will be built:
  /nix/store/2lkh1v5arc1rcc98prg1n99ay6mksv81-iets-static-aarch64-unknown-linux-musl-0.2.0.drv
  /nix/store/hmk817iqxygkw4r8z7yfsklhgn7dqb37-iets-static-x86_64-unknown-linux-musl-0.2.0.drv
  /nix/store/z8sw46mba0iw6n4iijm3n0nk58b8jn56-iets-release-0.2.0.drv
  /nix/store/v1wx33wiq7fdllid8kvvxjkna9dibj9k-inputDerivation-effect-release.drv
building '/nix/store/2lkh1v5arc1rcc98prg1n99ay6mksv81-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/hmk817iqxygkw4r8z7yfsklhgn7dqb37-iets-static-x86_64-unknown-linux-musl-0.2.0.drv'...
copying 1 paths...
copying path '/nix/store/lwi5h6jbc5aa85hhk0j4q1qzinfywp92-source' to 'grpc://farm.numtide.com:50051'...
copying 1 paths to 'farm.numtide.com:50051'...
copying path '/nix/store/2lkh1v5arc1rcc98prg1n99ay6mksv81-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' to 'farm.numtide.com:50051'...
building '/nix/store/2lkh1v5arc1rcc98prg1n99ay6mksv81-iets-static-aarch64-unknown-linux-musl-0.2.0.drv' on farm.numtide.com:50051...
copying 1 paths...
copying path '/nix/store/1s6k3s8j984rcjqgh3x295vli34y1r4q-iets-static-aarch64-unknown-linux-musl-0.2.0' from 'grpc://farm.numtide.com:50051'...
building '/nix/store/z8sw46mba0iw6n4iijm3n0nk58b8jn56-iets-release-0.2.0.drv'...
building '/nix/store/v1wx33wiq7fdllid8kvvxjkna9dibj9k-inputDerivation-effect-release.drv'...